Word: nightlight
Part of speech: Noun
Syllables: night
light
Definition: light that shines at night such as moonlight, starlight, etc.
Morphemes:
Affix: night
Language: en
PoS: Noun
Meaning: Darkness (due to it being nighttime).
Affix: light
Language: en
PoS: Noun
Meaning: A source of illumination.