Where does “terstus” come from?

terstus (Latin) comes from Latin tersa, from Latin tersus, from Latin tergo, from Proto-Indo-European terh₁- — to rub, turn; to drill, pierce.

Ancestry of “terstus”, step by step

StepLanguageWordMeaning
1Latintersanominative feminine singular of tersus;...
2Latintersusclean, neat, rubbed or wiped (off), cleansed, having been cleansed
3LatintergoAlternative form of tergeō; ablative singular of...
4Proto-Indo-Europeanterh₁-to rub, turn; to drill, pierce
Every word from Proto-Indo-European terh₁- →Every word from Latin tergo →Every word from Latin tersus →