Where does “蚊の姥” come from?

蚊の姥 (Japanese) comes from Japanese の, from Old Japanese の, from Middle Chinese 能 — talent, ability.

Ancestry of “蚊の姥”, step by step

蚊の姥 traces back through 3 separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesegenitive case marker; nominative case marker in a...
2Old Japaneseplain, field
3Middle Chinesetalent, ability

via Japanese

StepLanguageWordMeaning
1Japanesemosquito
2Japanesehouse; shop; person who sells or does that thing;...

via Japanese

StepLanguageWordMeaning
1Japanesean old woman
Every word from Middle Chinese Every word from Old Japanese Every word from Japanese