Word: oneth
Part of speech: Noun
Syllables: on
eth
Definition: An ordinal value that is represented by an expression ending in 1 such as the (n + 1)th.
Morphemes:
Affix: one
Language: en
PoS: Numeral
Meaning: The ordinality of an element which has no predecessor, usually called first or number one.
Affix: -th
Language: en
PoS: Suffix
Meaning: Used to form a term denoting the ordinal numeral corresponding to the value, being a natural number, of a mathematical expression.