Similar to obtero
- obduro – endure, hold out, last, persist, to be hard
- obtempero – to obey
- tero – to rub, wear out
- attero – destroy, erode, impair, rub against, rub away, ruin, to weaken, waste, weaken, wear away, wear down
- contero – to crush
- itero – iterate, say again, to repeat
- protero – to tread under foot, trample