Word: nightswim
Part of speech: Verb
Syllables: night
swim
Definition: To skinny dip;  is the practice of bathing naked, whether in natural bodies of water, in swimming pools, or in hot tubs
Morphemes:
Affix: night
Language: en
PoS: Verb
Meaning: To spend a night (in a place), to overnight.
Affix: swim
Language: en
PoS: Noun
Meaning: An act or instance of swimming.