ὑπᾰκου-στέον,
A. one must acceptat invitation, Pl. Ep. 328b , Plu. 2.709d .
II. one must answer,
τι περί τινος
Pl. Sph. 261d
.
2. one must understand something left out,
Phld. Rh. 1.115
S.,Mort. 30 , Sch. Pi. O. 10.84 , 11.19 , etc.;ὅτι. . Plu. 2.34b .