Meaning

noun a tenant in someone's house

noun someone who forces their way aboard ship

noun a pupil who lives at school during term time

originEtymology tree English board Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English boarder From board + -er.

Etymology from Wiktionary, CC BY-SA 3.0