Word: quintillionth
Part of speech: Noun
Syllables: quin
til
lionth
Definition: One of a quintillion equal parts of a whole.
Morphemes:
Affix: quint-
Language: en
Meaning: five
Affix: -illion
Language: en
PoS: Suffix
Meaning: Combined with Latin prefixes for names of integers in order to form names of powers of a million or of a thousand greater than 1,000,000. Thus we have the names billion, trillion, etc.
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.