untemper

From un- +‎ temper.

untemper (third-person singular simple present untempers, present participle untempering, simple past and past participle untempered)

1. (transitive, metallurgy) To deprive of temper
2. (transitive, figurative) to make soft.

   untemper courage

• “untemper”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

• erumpent