[frost] n [ME, fr. OE; akin to OHG frost--more at freeze] (bef. 12c) 1 a: the process of freezing b: a covering of minute ice crystals on a cold surface; also: ice particles formed from a gas c: the temperature that causes freezing
2. a: coldness of deportment or temperament: an indifferent, reserved, or unfriendly manner b: failure "the play was ... a most dreadful ~ --Arnold Bennett"
[2]frost vt (1635) 1 a: to cover with or as if with frost; esp: to put icing on (cake) b: to produce a fine-grained slightly roughened surface on (as metal or glass)
2: to injure or kill (as plants) by frost
3: to make angry or irritated "your attitude really ~s me" ~ vi: to become frosted