eṭṭhi : [f.] search; seeking.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Eṭṭhi (f.) [fr. eṭṭha, ā + iṣ, cp. Sk. eṣṭi] desire, wish, in combn. with gaveṭṭhi pariyeṭṭhi etc. Vbh 353 = Vism 23, 29 etc.

Pali-English Dictionary, TW Rhys Davids, William Stede,