Dictionary Definition:
Modati [mud, cp. Vedic moda joy Dhtp 146: tose] to rejoice, to enjoy oneself, to be happy A iii.40; Sn 561; Pv i.54; ii.121. -- pp. mudita (q. v.). For mohayamāna at DhA i.275 the better reading is modayamāna rejoicing, a ppr. med.