Word: nightwatchman
Part of speech: Noun
Syllables: night
watch
man
Definition: Someone who guards a premises at night.
Morphemes:
Affix: night
Language: en
PoS: Verb
Meaning: To spend a night (in a place), to overnight.
Affix: watch
Language: en
PoS: Noun
Meaning: The act of guarding and observing someone or something.
Affix: -man
Language: en
PoS: Suffix
Meaning: Someone (possibly implied male) who is employed or holds a position in an area.