Word: nightman
Part of speech: Noun
Syllables: night
man
Definition: A nightwatchman; a guard who works at night.
Morphemes:
Affix: night
Language: en
PoS: Noun
Meaning: Darkness (due to it being nighttime).
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.