Where does “mistfrog” come from?

mistfrog (English) comes from English Frog, from Portuguese froco, from Latin floccus, from Frankish flokko, from Proto-Germanic *flukkô, from Proto-Indo-European plewk-, from Proto-Indo-European plew- — to fly, flow, run.

Ancestry of “mistfrog”, step by step

mistfrog traces back through two separate lines of ancestry.

via English Frog

StepLanguageWordMeaning
1EnglishFrogAlternative form of frog
2Portuguesefrocoflock
3Latinfloccustuft, wisp of wool
4Frankishflokkodown, wool, flock
5Proto-Germanic*flukkô—
6Proto-Indo-Europeanplewk-to fly, flow, run; to splash, to flap with hands
7Proto-Indo-Europeanplew-to fly, flow, run

via English mist

StepLanguageWordMeaning
1EnglishmistWater or other liquid finely suspended in air; A...
2Middle EnglishmistAlternative form of myst
3Old Englishmistfog; mist
4Proto-Germanicmihstazcloud, mist, fog
5Proto-Indo-Europeanh₃migʰstos—
6Proto-Indo-Europeanh₃meygʰ-fog, mist, cloud; to drizzle
Every word from Proto-Indo-European plew- →Every word from Proto-Indo-European plewk- →Every word from Proto-Germanic *flukkô →