تسارّوا

1.
They spoke, or discoursed, secretly together; acquainted one another with secrets. (S, K.) [See also 3.]
2.
تسارّإِلَى ذٰلِكَ (tropical:) He experienced pleasure, or delight, at that: as, for instance, at his scratching a part of his body, or pressing, or kneading, it; and at a thing disliked by another person. (A, TA.) [But I am in some doubt as to the correctness of this, and incline to think that it is a mistake for استسرّ.]

Perseus ID: n19415