ignify

verb

Etymology: From igni- + -fy.

1. To form into fire.

   “1647, Richard Tomlinson (translator and reviser), Jean de Renou⁽ᶠʳ⁾, A Medicinal Dispensatory, [1623, Jean de Renou, Dispensatorium medicum], page 68, For Ignition in ſome is the end of Uſtion, in others, Uſtion is not terminated till smoke expire; and yet many ſtones may be ignified three or four times, and ſtill ſuffunded with a certain humour, till they be bray'd.”

   “[…]found, that the whole quantity of Aer ignify'd[…].”