تنجّس

2.
He did a deed whereby to become free from uncleanness, dirt, filth, or impurity; (K;) like as you say تَأَثَّمَ and تَحَرَّجَ and تَحَنَّثَ, meaning, he did a deed whereby to become free from crime, sin, &c. (TA.)

Perseus ID: n39433