inburn

From Middle English *inbernen, *inbrennen, from Old English *inbiernan, *inbærnan, suggested by Old English inbryne (“fire, burning”) and inbærnednes (“burning, incense”), equivalent to in- +‎ burn. Compare Old English onbiernan (“to be burning”). Cognate with Dutch inbranden (“to burn”), German einbrennen (“to burn”).

inburn (third-person singular simple present inburns, present participle inburning, simple past and past participle inburned)

1. (transitive) To burn in; burn or affect as to make a permanent or lasting impression or mark.
   • 1879, John Henry Parker, The Archaeology of Rome:

     Nicias has written upon this picture that he 'inburned' it,

   • 1902, American Institute of Homeopathy, American Institute of Homeopathy, Transactions of the fifty-seventh session of the American Institute:

     The habits of their fathers and their own early years have been so deeply inburned that they have not yet come to appreciate the value and convenience of modern toilets.

2. (intransitive) To burn within.
   • 1888, William James McClure, Poems: religious and miscellaneous:

     Of life complete — the outer rays / That show what fire of love inburns,

• inburning

• burn in, burn-in, burnin'