ὑπακ-τέον · hypak-teon — LSJ
one must go
one must go, EM 777.26, Zonar.
II one must purge
(ὑπάγω A.IV. 3) one must purge, Archig. ap. Gal. 12.976.
III one must subsume
one must subsume, τὰ ἐκεῖ ὑφʼ ἓν γένος τοῖς ἐνταῦθα Plot. 6.1.1.
IV one must introduce, apply
one must introduce or apply (remedies), Aët. 5.130.
V one must subject
ὑπακτέον τι τῇ χειρουργίᾳ one must subject it to operation, Paul.Aeg. 6.25.