n.
Function: transitive verb
Date: 1635
1 a : to cover with or as if with frost especially : 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 <that really frost s me>
intransitive verb : to become frosted