The story
- Latin · derived fromincastellāre“to fortify, to incastle”
- English todayincastle
From Mediaeval Latin incastellāre (“to fortify, to incastle”), from in- (“in-: make into”) + castellum (“little fortification, castle”). Cognate with Italian incastellare and Old French encasteler.
Etymology from Wiktionary, CC BY-SA 4.0.