Dictionary Definition:
Masati [mṛś] to touch: only in cpd. āmasati. The root is expld at Dhtp 305 as "āmasana." Another root masu [mṛś?] is at Dhtm 444 given in meaning "macchera." Does this refer to Sk. mṛṣā (=P. micchā)? Cp. māsati, māsana etc.