Word: nightfall
Part of speech: Noun
Syllables: night
fall
Definition: The close of the day; the coming of night.
Morphemes:
Affix: night
Language: en
PoS: Noun
Meaning: Nightfall.
Affix: fall
Language: en
PoS: Verb
Meaning: To happen; to come to pass; to chance or light (upon).