Camper
来自Big Physics
early 20th century: of unknown origin.
wiktionary
camp + -er
etymonline
camper (n.)
1630s, "soldier," agent noun from camp (v.). Meaning "attendee at a camp meeting" is from 1806; meaning "one who sleeps in temporary quarters outdoors" is from 1856; that of "motor vehicle with sleeping quarters" is from 1960. Extended use of happy camper is from c. 1987.
