Word: plumper
Part of speech: Noun
Syllables: plump
er
Definition: That which plumps or swells out something else.
Morphemes:
Affix: plump
Language: en
PoS: Verb
Meaning: To grow plump; to swell out.
Affix: -er
Language: en
PoS: Suffix
Meaning: Used to form diminutives.