Where does “tentigo” come from?

tentigo (English) comes from Latin tentīgō, from Latin tendere, from Proto-Indo-European tend-, from Proto-Indo-European temh₂- — to stretch, string; to cut.

tentigo (English): Penile erection or tumescence; "especially",...

Definitions

Penile erection or tumescence; "especially",...

Ancestry of “tentigo”, step by step

Step	Language	Word	Meaning
1	Latin	tentīgō	lecherousness, lust
2	Latin	tendere	second-person singular future passive indicative...
3	Proto-Indo-European	tend-	to stretch, to extend; to split, cut off
4	Proto-Indo-European	temh₂-	to stretch, string; to cut

Every word from Proto-Indo-European temh₂- →Every word from Proto-Indo-European tend- →Every word from Latin tendere →