The kanji 耐 primarily conveys the idea of "enduring," "withstanding," "tolerating," or "bearing." It suggests the ability to cope with hardship, pain, or pressure without breaking or giving up. It encompasses the concepts of resilience, perseverance, and the ability to persevere through difficult situations.

・On-yomi (音読み): タイ (tai) ・Kun-yomi (訓読み): た（える） (tae(ru))

⚫︎ 忍耐 (nin・tai) Translation: Patience; endurance; perseverance. ⚫︎ 耐久性 (tai・kyuu・sei) Translation: Durability; resistance; endurance. ⚫︎ 耐える (tae・ru) Translation: To endure; to bear; to withstand.

The kanji 耐 is a phono-semantic compound (形声文字, keisei moji). The left side is the radical 而 (ni), which originally depicted a beard, and later evolved to indicate "beard" or "then" and in this case, it gives a sense of time passing. The right side is 寸 (sun), meaning "inch" or "a small amount." This part suggests the idea of "a little" or "a small amount of time" but it indicates to the action is happening. Combining these elements suggests "to endure through time," or "to withstand a little longer." The overall meaning emphasizes the concept of persevering through difficulty or hardship, gradually.