-proof, enduring
耐 centers on holding up under pressure: enduring hardship or being resistant to something, as in the suffix '-proof'.
耐 combines 而 (originally a beard or whiskers, later used phonetically) with 寸 (hand/measure), suggesting the idea of enduring or withstanding. The exact historical development is uncertain.
The left side 而 looks like a person with a heavy load on their head, and the right side 寸 is a hand measuring the pressure. Together, they show enduring a burden.
For タイ, imagine a tie holding up under great strain: tie -> タイ, and the tie endures the pull without breaking.
to bear; to stand; to endure; to put up with
endurance; persistence
resistance (to heat, corrosion, etc.); tolerance (to a drug, pain, etc.)
resistant to earthquakes
endurance; perseverance; patience
-proof; -resistant
heat-resisting
fireproof
durability
unbearable; intolerable; unendurable
resistance to cold
water-resistant; waterproof
resistance to pressure; resisting pressure
corrosion resistance; erosion resistance; resistance to corrosion
to put up with; to endure; to bear patiently
to stick it out (until the end)
carbapenem-resistant enterobacteriaceae; CRE
surge resistance
stress resistance; stress tolerance
super-resistant bacteria