# ταχύς
## Ancient Greek
### Etymology

Possibly from Proto-Indo-European *dʰn̥gʰ-ú-s, zero-grade u-stem of *dʰengʰ- (“to go quickly”), based on the comparison with Lithuanian déngti (“to run, hurry”) (see there for more potential cognates), though Fraenkel has disputed the connection.
Not related to Sanskrit तकु (taku), तक्व (takva, “quick, fast”), as Ancient Greek χ (kh) does not match Sanskrit क् (k), and the comparative θάσσων (thássōn) proves that the Greek τ (t) in ταχύς (takhús) is originally θ (th), from the aspirated PIE *dʰ (see Grassmann's law).

### Pronunciation

* IPA: /ta.kʰýs/ → /taˈçys/ → /taˈçis/
* (5th BCE Attic) IPA: /ta.kʰýs/
* (1st CE Egyptian) IPA: /taˈkʰys/
* (4th CE Koine) IPA: /taˈçys/
* (10th CE Byzantine) IPA: /taˈçys/
* (15th CE Constantinopolitan) IPA: /taˈçis/

### Adjective

τᾰχῠ́ς • (tăkhŭ́s) m (feminine τᾰχεῖᾰ, neuter τᾰχῠ́); first/third declension
* swift, quick, fast, rapid
* In a short time: soon

#### Synonyms

* ὠκύς (ōkús)

#### Antonyms

* βραδύς (bradús, “slow”)

#### Coordinate terms

* θᾱ́σσων (thā́ssōn, “faster”)

#### Derived terms

* ταχέως (takhéōs)
* τᾰχῠθᾰ́νᾰτος (tăkhŭthắnătos)
* ταχύπους (takhúpous)
* ταχύπωλος (takhúpōlos)
* ταχυτής (takhutḗs)

#### Descendants

* → English: tachy- (learned)

### References

* ↑ Beekes, Robert S. P. (2010) “ταχύς”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, pages 1456–1457
* ↑ Fraenkel, Ernst (1955, 1962–1965) “deñgti”, in Litauisches etymologisches Wörterbuch, volume I, Heidelberg-Göttingen: Carl Winter and Vandenhoeck & Ruprecht, pages 88–89: “Über griech. ταχύς ‘schnell’, Komp. θᾱ́σσων, eretr. Eigenn. Τήχιππος, die nichts mit lit. déngti ‘schnell laufen, eilen’, zu tun haben, s. jetzt Seiler Steig. 25.39ff.”

### Further reading

* “ταχύς”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
* “ταχύς”, in Liddell & Scott (1889) An Intermediate Greek–English Lexicon, New York: Harper & Brothers
* “ταχύς”, in Autenrieth, Georg (1891) A Homeric Dictionary for Schools and Colleges, New York: Harper and Brothers
* ταχύς in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
* Bauer, Walter et al. (2001) A Greek–English Lexicon of the New Testament and Other Early Christian Literature, Third edition, Chicago: University of Chicago Press
* ταχύς in Cunliffe, Richard J. (1924) A Lexicon of the Homeric Dialect: Expanded Edition, Norman: University of Oklahoma Press, published 1963
* “ταχύς”, in Slater, William J. (1969) Lexicon to Pindar, Berlin: Walter de Gruyter
* G5036 in Strong, James (1979) Strong’s Exhaustive Concordance to the Bible
* Woodhouse, S. C. (1910) English–Greek Dictionary: A Vocabulary of the Attic Language‎, London: Routledge & Kegan Paul Limited. expeditious idem, page 293.express idem, page 295.fleet idem, page 327.hasty idem, page 387.headlong idem, page 391.hurried idem, page 411.nimble idem, page 558.quick idem, page 665.rapid idem, page 672.sharp idem, page 762.speedy idem, page 801.swift idem, page 848.
* Sihler, Andrew L. (1995) New Comparative Grammar of Greek and Latin, Oxford, New York: Oxford University Press, →ISBN

## Greek
### Etymology

From Ancient Greek ταχύς (takhús).

### Adjective

ταχύς • (tachýs) m (feminine ταχεία, neuter ταχύ)
* fast, rapid
    Synonym: αλματώδης (almatódis)
* sudden

#### Declension

Derivations: Comparative: πιο + positive forms (e.g. πιο ταχύς, etc.) Relative superlative: definite article + πιο + positive forms (e.g. ο πιο ταχύς, etc.)
comparative (?)
singular
plural
masculine
feminine
neuter
masculine
feminine
neuter
nominative
ταχύτερος (tachýteros)
ταχύτερη (tachýteri)
ταχύτερο (tachýtero)
ταχύτεροι (tachýteroi)
ταχύτερες (tachýteres)
ταχύτερα (tachýtera)
genitive
ταχύτερου (tachýterou)
ταχύτερης (tachýteris)
ταχύτερου (tachýterou)
ταχύτερων (tachýteron)
ταχύτερων (tachýteron)
ταχύτερων (tachýteron)
accusative
ταχύτερο (tachýtero)
ταχύτερη (tachýteri)
ταχύτερο (tachýtero)
ταχύτερους (tachýterous)
ταχύτερες (tachýteres)
ταχύτερα (tachýtera)
vocative
ταχύτερε (tachýtere)
ταχύτερη (tachýteri)
ταχύτερο (tachýtero)
ταχύτεροι (tachýteroi)
ταχύτερες (tachýteres)
ταχύτερα (tachýtera)
Derivations: relative superlative: ο + comparative forms (eg "ο ταχύτερος", etc)
absolute superlative (?)
singular
plural
masculine
feminine
neuter
masculine
feminine
neuter
nominative
ταχύτατος (tachýtatos)
ταχύτατη (tachýtati)
ταχύτατο (tachýtato)
ταχύτατοι (tachýtatoi)
ταχύτατες (tachýtates)
ταχύτατα (tachýtata)
genitive
ταχύτατου (tachýtatou)
ταχύτατης (tachýtatis)
ταχύτατου (tachýtatou)
ταχύτατων (tachýtaton)
ταχύτατων (tachýtaton)
ταχύτατων (tachýtaton)
accusative
ταχύτατο (tachýtato)
ταχύτατη (tachýtati)
ταχύτατο (tachýtato)
ταχύτατους (tachýtatous)
ταχύτατες (tachýtates)
ταχύτατα (tachýtata)
vocative
ταχύτατε (tachýtate)
ταχύτατη (tachýtati)
ταχύτατο (tachýtato)
ταχύτατοι (tachýtatoi)
ταχύτατες (tachýtates)
ταχύτατα (tachýtata) :

#### Related terms

* ισοταχής (isotachís, “of equal speed”, adjective)
* ταχέως (tachéos, adverb)
* ταχύτητα f (tachýtita, “speed”)