frosten

Verb

frosten (third-person singular simple present frostens, present participle frostening, simple past and past participle frostened)

1. (ambitransitive) To make or become frosted
   • For myself, I can entertain no fears that it will be otherwise. Around me and before me are to be seen the wise, the good and the great of our Fraternity; the grave and reverend countenances of the age, whose half-century of skill and experience have polished the shafts and adorned the capitals of...1858, Albert Gallatin Mackey, The American Quarterly Review of Freemasonry and Its Kindred Sciences
   • Her appearance was extremely neat. Her dark brown hair laid neatly upon either side of a high fair brow — and Time had kindly refused to frosten one single thread of it.1866, Ned Buntline, The Beautiful Nun, page 114