Where does “cast about” come from?

cast about (English) comes from English about, from Middle English aboute, from Old English onbūtan, from Old English on-, from Proto-West Germanic ana-, from Proto-Germanic ana — on, at; on, onto; ana.

cast about (English): To try to find; look around; search; To plan;...

Definitions

  1. To try to find; look around; search; To plan;...

Ancestry of “cast about”, step by step

cast about traces back through two separate lines of ancestry.

via English about

StepLanguageWordMeaning
1EnglishaboutIn a circle around; all round; on every side of;...
2Middle Englishaboutearound
3Old Englishonbūtanabout, round about, all around
4Old Englishon-forming verbs and adjectives from participles and...
5Proto-West Germanicana-Forming verbs and adjectives from participles and...
6Proto-Germanicanaon, at; on, onto; ana

via English cast

StepLanguageWordMeaning
1EnglishcastTo throw; To throw forward into the sea; To...
2Middle Englishcastento throw, cast
3Old Norsekastato cast, to throw
4Proto-Germanickastōnąto throw
5Proto-Germanickas-to throw; bring up; toss
Every word from Proto-Germanic anaEvery word from Old English on-Every word from Old English onbūtan