περιίστημι in the trans. tenses, fut. -στήσω, aor1 -έστησα, to place round, π. τί τινι Hdt.; στρατὸν περὶ πόλιν Xen.:—metaph., π. τινὶ πλείω κακά Dem. to bring round, π. πολιτείαν εἰς ἑαυτόν to bring it round to himself, Arist.:—esp. to bring into a worse state, Aeschin. in aor1 mid. to place round oneself, Xen. Pass. and Mid., with aor2 act. -έστην, perf. -έστηκα, plup. -έστηκειν, to stand round about, Il.; κῦμα περιστάθη a wave rose around (Epic aor1 pass.), Od. c. acc. to stand round, encircle, surround, Hom.; μήπως με περιστήωσʼ ἕνα πολλοί (Epic 3rd pl. aor2 subj.), that their numbers surround me not, Il.; metaph., τὸ περιεστὸς ἡμᾶς δεινόν Thuc. to come round to one, νομίσαντες τὸ παρανόμημα ἐς τοὺς Ἀθηναίους περιεστάναι Thuc.:—c. dat. to come upon one, ἡμῖν ἀδοξία περιέστη Thuc.; τοῦ πολέμου περιεστηκότος τοῖς Θηβαίοις Dem. of events, to come round, turn out, esp. for the worse, ἐς τοῦτο περιέστη ἡ τύχη fortune was so completely reversed, Thuc.; τοὐναντίον περιέστη αὐτῷ it turned out quite contrary for him, Thuc.; c. inf., περιειστήκει τοῖς βοηθείας δεομένοις αὐτοὺς ἑτέροις βοηθεῖν it came round to those who required help to give help to others, Dem. in late writers, to go round so as to avoid, Luc., NTest.