Word: eightieth
Part of speech: Noun
Syllables: eight
i
eth
Definition: One of eighty equal parts of a whole.
Morphemes:
Affix: eight
Language: en
PoS: Numeral
Meaning: Describing a group or set with eight elements.
Affix: -ty
Language: en
PoS: Suffix
Meaning: Nonproductive suffix indicating single-digit integer multiples of ten
Affix: -eth
Language: en
PoS: Suffix
Meaning: used to create ordinal numbers from cardinal numbers ending in -y namely the multiples of ten (other than ten itself): 20, 30, 40, 50, 60, 70, 80, and 90; e.g. twentieth, thirtieth.