我慢
がまん endurance; patience
Why it means this
我 (self, ego) + 慢 (conceit — a Buddhist term for arrogant self-attachment) — originally sinful pride; the meaning shifted to 'holding oneself in', enduring, putting up with (我慢強い; もう我慢できない).
Breakdown
Each character links to its full entry — origin story, stroke order, and readings.