Word: twelvemo
Part of speech: Noun
Syllables: twelve
mo
Definition: duodecimo, or 12mo, a paper size, so called because it is cut 12 to a (huge, originally made) sheet
Morphemes:
Affix: twelve
Language: en
PoS: Noun
Meaning: A group of twelve items.
Affix: -mo
Language: en
PoS: Suffix
Meaning: Used to form page and book sizes.