adamantized

Verb

adamantize (third-person singular simple present adamantizes, present participle adamantizing, simple past and past participle adamantized)

1. (rare, transitive) To render (something) adamant; to harden; to strengthen.
   • I have known such things begun over the loan of a hymn-book, drawn closer by an exchange of cards, cemented by a morning call, adamantized by a walk, and transformed into a regular life-and-death affair by a proper number of cups of tea. It seems to me an interesting weakness.1853 June 18, Eliza Cook, “Making Acquaintances”, in Eliza Cook's Journal, number 216, page 114, column 2