Where does “brachyuran” come from?

brachyuran (English) comes from Translingual Brachyura, from Ancient Greek βραχύς, from Proto-Indo-European mréǵʰus, from Proto-Indo-European mreǵʰ- — short.

brachyuran (English): Of or pertaining to crabs; A crab

Definitions

Of or pertaining to crabs; A crab

Ancestry of “brachyuran”, step by step

Step	Language	Word	Meaning
1	Translingual	Brachyura	infraorder, characteristically with a short tail and a reduced abdomen}}
2	Ancient Greek	βραχύς	short, brief; short, small, little; few
3	Proto-Indo-European	mréǵʰus	short; brief
4	Proto-Indo-European	mreǵʰ-	short

Every word from Proto-Indo-European mreǵʰ- →Every word from Proto-Indo-European mréǵʰus →Every word from Ancient Greek βραχύς →