Where does “crouse” come from?

crouse (Middle English) comes from Old English crūse, from Latvian krusa, from Old Tupi -a, from Old Tupi pó, from Proto-Tupi-Guarani *po, from Proto-Tupian *po — hand.

Ancestry of “crouse”, step by step

Step	Language	Word	Meaning
1	Old English	crūse	jar, cruse
2	Latvian	krusa	hail
3	Old Tupi	-a	forms nouns from a word's stem
4	Old Tupi	pó	hand
5	Proto-Tupi-Guarani	*po	hand
6	Proto-Tupian	*po	hand

Words derived from “crouse”

cruse

Every word from Proto-Tupian *po →Every word from Old Tupi -a →Every word from Proto-Tupi-Guarani *po →