Where does “insitivus” come from?

insitivus (Latin) comes from Latin īnserō, from Latin serō, from Latin sērus, from Proto-Italic swerjos, from Proto-Indo-European swer-yo-s, from Proto-Indo-European swer- — to ache; to fester; wound; injury.

insitivus (Latin): ingrafted, grafted; substituted, spurious;...

Definitions

ingrafted, grafted; substituted, spurious;...

Ancestry of “insitivus”, step by step

Step	Language	Word	Meaning
1	Latin	īnserō	to sow or plant
2	Latin	serō	to sow, plant
3	Latin	sērus	late, too late
4	Proto-Italic	swerjos	—
5	Proto-Indo-European	swer-yo-s	—
6	Proto-Indo-European	swer-	to ache; to fester; wound; injury

Every word from Proto-Indo-European swer- →Every word from Proto-Indo-European swer-yo-s →Every word from Proto-Italic swerjos →