incastle
To add castles to a place.
obsolete
Meth was alredie meetlie well and indifferentlie fortified and incastelled.
Where it comes from
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.
Adapted from the Wiktionary entry incastle (CC BY-SA 4.0).