Word: sumpman
Part of speech: Noun
Syllables: sump
man
Definition: A pitman's assistant, responsible for the machinery in the engine shaft.
Morphemes:
Affix: sump
Language: en
PoS: Noun
Meaning: The crankcase or oil reservoir of an internal combustion engine.
Affix: -man
Language: en
PoS: Suffix
Meaning: Someone (possibly implied male) who is an expert in an area or who takes part in an activity.