paritAsa
paritāsa , m. ( nom. act. to paritasyati ), troubled mental state, discouragement : AbhidhK. LaV-P. vi.145 note 5 paritāso daurmanasyam, tena hi paritasyate, upakṣīyata ity arthaḥ.
(masc, masc, from paritassati) agitation; anxiety; anguish; turmoil; nervousness [lit.] trembling all around Construction: pari + √tas > tās + *a