inside

Today it means: The interior or inner part. Full definition →

Middle English ynneside

The story

From Middle English ynneside; equivalent to in- + side. Compare German Innenseite (“inside”), Danish inderside (“inside”), Swedish insida (“inside”), Dutch binnenzijde (“inside”), German Low German Binnensied, Binnersied (“inside”), Saterland Frisian Binnersiede (“inside”).

Etymology from Wiktionary, CC BY-SA 4.0.