Yatta [past participle of yatati 1 ] strenuous, making an effort, watchful Nidd II §525 (+ paṭiyatta, in exegesis of yata); Ja IV 222 (+ paṭiyatta); VI 294 (Kern's reading for yata; vv.ll. saṃyata and sata, thus warranting yata); Miln 373 (°payatta), 378 (the same = in keen effort). Note: Kern, Toev. sub voce would like to equal yatta = Sanskrit yatna effort.
yatta a. [ yat-kta ] 1 Exerting, watching. 2 Taking pains or care. 3 Prepared, ready. 4 Resolved. 5 Cared for, attended to.
(pp, pp of yatati) on guard; prepared; cautious; watchful Construction: √yat + ta