Frequentative
In grammar, a frequentative form (abbreviated ' or ') of a word is one that indicates repeated action, but is not to be confused with iterative aspect. The frequentative form can be considered a separate but not completely independent word called a frequentative. The frequentative is no longer productive in English, but still is in some language groups, such as Finno-Ugric, Balto-Slavic, Turkic, etc. English. English has "-le" and -"er" as frequentative suffixes. Some frequentative verbs surviving in English and their parent verbs are listed below. Additionally, some frequentative verbs are formed by reduplication of a monosyllable (e.g., "coo -cooing", "cf." Latin "murmur"). Frequentative nouns are often formed by combining two different vowel grades of the same word (as in "teeter-totter", "pitter-patter", "chitchat", etc.) The present tense in English usually has a frequentative meaning. For example, "I walk to work." means "I walk to work most days.", and would be true even if the speaker was not on their way to work there at the time. Finnish. In Finnish, a frequentative verb signifies a single action repeated, "around the place" both spatially and temporally. The complete translation would be "go — around aimlessly". There is a large array  of different frequentatives, indicated by lexical agglutinative markers. In general, one frequentative is "-:i-", and another "-ele-", but it is almost always combined with something else. Some forms: There are several frequentative morphemes, underlined above; these are affected by consonant gradation as indicated. Their meanings are slightly different; see the list, arranged "infinitive"~"personal": Frequentatives may be combined with momentanes, that is, to indicate the repetition of a short, sudden action. The momentane "-ahta-" can be prefixed with the frequentative "-ele-" to produce the morpheme "-ahtele-", as in "täristä" "to shake (continuously)" → "tärähtää" "to shake suddenly once" → "tärähdellä" "to  shake, such that a single, sudden shaking is repeated". For example, the contrast between these is that ground shakes ("maa tärisee") continuously when a large truck goes by, the ground shakes once ("maa tärähtää") when a cannon fires, and the ground shakes suddenly but repeatedly ("maa tärähtelee") when a battery of cannons is firing. Since the frequentative is a lexical, not a grammatical contrast, considerable semantic drift may have occurred. For a list of different real and hypothetical forms, see: Loanwords are put into the frequentative form, if the action is such. If the action can be nothing else but  frequentative, the "basic form" doesn't even exist, such as with "to go shopping". Adjectives can similarly receive frequentative markers: "iso — isotella" "big — to talk big", or "feikkailla" < English "fake" "to be fake, blatantly and consistently". Greek. In Homer and Herodotus, there is a past frequentative, usually called "past iterative", with an additional -sk- suffix before the endings. The same suffix is used in inchoative verbs in both Ancient Greek and Latin. The infix may occur in the forms -σκ-, -ασκ-, and -εσκ-. Homer regularly omits the augment. The iterative occurs most often in the imperfect, but also in  the aorist. Hungarian. In Hungarian it is quite common and everyday to use frequentative. Frequentative verbs are formed with the suffix "–gat" ("–get" after a front vowel; see vowel harmony). Also there is a so-called Template rule, which forces another vowel in between the base verb and the affix resulting in a word containing at least three syllables. Verbal prefixes (coverbs) do not count as a syllable. Some verbs' frequentative forms have acquired an independent non-frequentative meaning. In these cases the three syllables rule is not applied as the form is not considered a frequentative. These words can  be affixed with "–gat" again to create a frequentative meaning. In rare cases non-verbs can be affixed by "–gat" to give them similar modification in meaning as to verbs. In most cases these non-verbs are obviously related to some actions, like a typical outcome or object. The resulting word basically has the same meaning as if the related verb were affixed with "–gat". The change in meaning of a frequentative compared to the base can be different depending on the base: The "–gat" affix can modify the occurrences or the intensity or both of an action. Occasionally it  produces a specific meaning which is related but distinct from the original form's. Examples: Latin. In Latin, frequentative verbs show repeated or intense action. They are formed from the supine stem with -tāre/-sāre, -itāre, -titāre/-sitāre added. The deponent verb "minārī" (‘threaten’) has frequentatives of both deponent and active form: "minitārī" and "minitāre". Lithuanian. Lithuanian has a past frequentative (or iterative), which serves to express a single action repeated in the past. Starting from the infinitive without –"ti", it is formed by adding the invariant morpheme –"dav"– followed by the regular past tense suffix of the first conjugation. For instance , "dirb·ti ("to work", a first-conjugation verb), whose plain past tense is "dirb·au ("I worked" or "I have worked"), has a past iterative of "dirb·dav·au" ("I used to work"). The six intersections of person and number map onto five distinct frequentative endings; there is no morphological distinction of number in the third person, nor of conjugation class in general. The closest relative of Lithuanian, Latvian, as well as the Samogitian dialect of the language, has no separate past tense to mark iterative aspect; in its place, however, both may express it by means of periphrasis. An auxiliary verb – "mēgt" in  Latvian and "liuobėti" in Samogitian – will then occupy the syntactic centre of the verb phrase (subject to conjugation), relegating the main verb to trail it as an (invariant) infinitive complement. Consider the following three translations of the English sentence "We used to read a lot." Polish. In the Polish language, certain imperfective verbs ending in "-ać" denote repeated or habitual action. The interfix "-yw-" used to form many frequentative verbs has a different function for prefixed perfective verbs: it serves to create their imperfective equivalents. For instance, "rozczytywać" (to try to read something barely legible) is simply an imperfective equivalent  of "rozczytać" (to succeed at reading something barely legible). Russian. In the Russian language, the frequentative form of verbs to denote a repeated or customary action is produced by inserting suffixes -ива-/-ыва-, -ва- or -а́-, often accompanied with a change in the root of the word (vowel alternation, change of the last root consonant) and stress shift. An interesting example is with the word "брать" (to take); an archaic usage recorded among hunters, normally used in the past tense, in hunter's boasting: бирал, бирывал meaning "used to take (quite a few) trophies". Reduplication. The simplest way to produce a  frequentative is reduplication, either of the entire word or of one of its phonemes. This is common in Austronesian languages such as Niuean, although reduplication also serves to pluralize and intensify nouns and adjectives.