frustātim — Lewis & Short
frustātim, adv.frustum,
I piecemeal, in pieces (very rare): objectare leonibus prandium, Pompon. ap. Non. 113, 7:
coquitur in olla, aut frustatim in patinis,Plin. 20, 9, 39, § 99; Prud. Psych. 720.