Came together (συνηρχετο). Imperfect middle, kept on coming.

Round about (περιξ). Old adverb, strengthened form of περ, only here in the N.T.

Vexed (οχλουμενους). Present passive participle of οχλεω, to excite a mob (οχλος) against one, to trouble, annoy. Old word, only here in the N.T., though ενοχλεω in Luke 6:18.

Were healed every one (εθεραπευοντο απαντες). Imperfect passive, were healed one at a time, repetition.