Where does “gregale” come from?

gregale (Latin) comes from Latin gregalis, from Latin grex, from Proto-Indo-European ger- — to turn, bend, twist, wind; to tie, bind...

gregale (Latin): nominative neuter singular of gregālis;...

Definitions

Step	Language	Word	Meaning
1	Latin	gregalis	of the herd; common; of the same group, flock, or...
2	Latin	grex	a group of smaller animals: a flock of birds, sheep, etc., a pack of dogs, wolves, etc., a swarm of insects, etc
3	Proto-Indo-European	ger-	to turn, bend, twist, wind; to tie, bind...