ice over vs frost over

ice over and frost over both are verbs.

Word	Noun	Adjective	Verb	Adverb
ice over	No	No	Yes	No
frost over	No	No	Yes	No

As verbs, ice over and frost over are synonyms defined as:

ice over and frost over: become covered with a layer of ice; of a surface such as a window

Other synonyms of ice over include ice up.

ice over (verb)	frost over (verb)
become covered with a layer of ice; of a surface such as a window	become covered with a layer of ice; of a surface such as a window