Where does “frogman” come from?

frogman (English) comes from English MAN, from English manual, from Middle English manuel, from Anglo-Norman manuel, from Old French manual, from Latin manuālis, from Latin manus, from Proto-Italic manus — human being; man; hand.

frogman (English): A diver, especially one in a diving suit; A...

Definitions

  1. A diver, especially one in a diving suit; A...

Ancestry of “frogman”, step by step

frogman traces back through two separate lines of ancestry.

via English MAN

StepLanguageWordMeaning
1EnglishMANInitialism of Metropolitan Area Network
2EnglishmanualA handbook; A booklet that instructs on the usage...
3Middle Englishmanuel
4Anglo-Normanmanuelmanual; done with the hands; handle; manual;...
5Old Frenchmanual
6Latinmanuālishand
7Latinmanushand; bravery, valor; violence, fighting
8Proto-Italicmanushand
9Proto-Indo-Europeanman-human being; man; hand

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
Every word from Proto-Indo-European man-Every word from Proto-Italic manusEvery word from Latin manus