Word: scumming
Part of speech: Noun
Syllables: scum
ming
Definition: The accumulation of sticky ink on a plate.
Morphemes:
Affix: scum
Language: en
PoS: Noun
Meaning: A layer of impurities that accumulates at the surface of a liquid (especially molten metal or water).
Affix: -ing
Language: en
PoS: Suffix
Meaning: Used to form uncountable nouns from verbs denoting the act of doing something, an action.