πυργηρέομαι
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
English (LSJ)
Pass.,
A to be shut up as in a tower, beleaguered, A.Th. 22, 184, E.Or.762 (troch.), 1574, Ph.1087.