耐 means “withstand, endure, -proof”

たえる · taeru

Also: enduring

Kun'yomi (Japanese reading)
たえる
On'yomi (Chinese reading)
タイ

JLPT N1 · Taught in secondary school · 9 strokes

The story

A hand (寸) and a beard (而): the Shuowen ties 耐 to an old penalty, having your beard shaved off, a shame to be borne. 耐える is to endure, and in quake-prone Japan buildings boast of 耐震, earthquake resistance, as cookware does of 耐熱.

Used in 耐える (taeru, to endure), 忍耐 (nintai, patience), and 耐震 (taishin, earthquake-resistant)

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Readings from KANJIDIC2, © EDRDG, CC BY-SA.