Meaning

adjective being on the outside or further from a center

adjective located outside

adjective being on or toward the outside of the body

originEtymology tree Proto-Indo-European *úd Proto-Germanic *ūt Proto-West Germanic *ūt Old English ūt ▲ Proto-Germanic *ūt Proto-Germanic *-ai Proto-Germanic *ūtai Proto-West Germanic *ūtē Old English ūte Middle English oute English out (adjective) English -er English outer From out (adjective) + -er (“comparative suffix”).

Etymology from Wiktionary, CC BY-SA 3.0