Word: fortnightly
Part of speech: Adjective
Syllables: fort
night
ly
Definition: occurring once in a fortnight; once every two weeks
Morphemes:
Affix: fourteen
Language: en
PoS: Numeral
Meaning: The cardinal number occurring after thirteen and before fifteen, represented in Roman numerals as XIV and in Arabic numerals as 14.
Affix: night
Language: en
PoS: Noun
Meaning: Often defined in the legal system as beginning 30 minutes after sunset, and ending 30 minutes before sunrise.
Affix: -ly
Language: en
PoS: Suffix
Meaning: Used to form adjectives from nouns specifying time intervals, the adjectives having the sense of "occurring at such intervals".