To release from allegiance or to break a sworn loyalty oath; to free from the obligation of loyalty.
From dis- (reversal) + alliege (to bind by allegiance). Alliege comes from Old French and relates to feudal loyalty bonds that could be ceremonially broken.
During medieval times, this word mattered tremendously—when a knight was disalleged from his lord, it was a formal legal process that changed everything about his obligations and protections. It shows how much language evolves when social systems change!
Complete word intelligence in one call. Free tier — 50 lookups/day.