Where does “uncrewed” come from?

uncrewed (English) comes from English un — One.

uncrewed (English): without a crew; unmanned

Definitions

  1. without a crew; unmanned

Ancestry of “uncrewed”, step by step

uncrewed traces back through two separate lines of ancestry.

via English un

StepLanguageWordMeaning
1EnglishunOne

via English crewed

StepLanguageWordMeaning
1EnglishcrewedHaving a crew; manned; piloted; simple past tense...
Every word from English un