Where does “perula” come from?

perula (Old Saxon) comes from Medieval Latin perla, from Latin perna, from Proto-Italic persnā, from Proto-Indo-European tpḗrsneh₂, from Proto-Indo-European sperH- — to kick.

Ancestry of “perula”, step by step

Step	Language	Word	Meaning
1	Medieval Latin	perla	—
2	Latin	perna	A haunch or ham together with the leg, gammon; A...
3	Proto-Italic	persnā	—
4	Proto-Indo-European	tpḗrsneh₂	heel, upper thigh
5	Proto-Indo-European	sperH-	to kick

Words derived from “perula”

perle
perla
pärl
perla
perle
perlumóðir
perl
perleugle

Every word from Proto-Indo-European sperH- →Every word from Proto-Indo-European tpḗrsneh₂ →Every word from Proto-Italic persnā →