expression
can withstand; can endure; able to bear
Expresses the ability to endure or withstand something difficult. Often used in formal or written contexts. The 得る part is a classical potential auxiliary, equivalent to 耐えられる in modern colloquial Japanese.
この素材は高温にも耐え得る。
This material can withstand high temperatures.
彼はどんな困難にも耐え得る精神力を持っている。
He has the mental strength to endure any hardship.
耐える is the base verb meaning 'to endure' or 'to withstand'. 耐え得る adds the potential meaning 'can endure', and is more formal/literary than 耐えられる.
耐えられる is the standard modern potential form of 耐える. 耐え得る is a more formal, often written, equivalent.
Compound of the verb stem 耐え (from 耐える, 'to endure') + the classical potential auxiliary verb 得る (うる), meaning 'can' or 'be able to'.