I. of clothes, etc., put them on a person, c. dupl. acc. pers. et rei, “ἀμφὶ δέ με χλαῖναν . . βάλεν ἠδὲ χιτῶνα” Od.10.365, cf. 451; “ἀμφὶ δέ μιν ῥάκος . . βάλεν” 13.434: c. dat. pers., ἀμφὶ δέ μοι ῥάκος . . βάλον v.l. in 14.342; “ἀμφὶ δ᾽ Ἀθήνη ὤμοις . . βάλ᾽ αἰγίδα” Il.18.204; “στολὴν . . ἀμφέβαλλε σῷ κάρᾳ” E.HF465; “γέρας κόμαις” Pi.P.5.32:—Med., put round oneself, “δὸς δὲ ῥάκος ἀμφιβαλέσθαι” Od.6.178, cf. 22.103, etc.; “ἄγραν . . ἀ. πλοκάμοις” E.Ba.104.
b. metaph. and half metaph., τῷ δ᾽ ἐγὼ ἀμφιβαλὼν θάλαμον δέμον I built chamber over him, Od.23.192; “ζυγὸν Ἑλλάδι ἀ.” A.Pers.50, cf. 72; “ἀνδράσι κρατὴρ ὕπνον ἀμφιβάλλῃ” E.Ba. 385; ἐξ ὅτου λευκὴν ἐκ μελαίνης ἀμφιβάλλομαι τρίχα since I have put on white hair, S.Ant.1093; “ἀ. νέφος θανάτου” Simon.99.
c. Act. in med. sense, κρατερὸν μένος ἀμφιβαλόντες [ἑαυτοῖς] 'girding themselves with strength', Il.17.742; δουλοσύναν ἀμφιβαλοῦσα κάρᾳ [ἐμαυτῆς] E.Andr.110: reversely, Med. for Act., “ἀμφιβάλλεσθαι Ἀΐδαν ἐπί τινι” 1191:—Pass., ὕμνος ἀμφιβάλλεται σοφῶν μητίες σι song is cast (like a net) over the minds of poets, Pi.O.1.8.
2. throw the arms round, so as to embrace, c. dat. pers., “ἀμφ᾽ Ὀδυσῆι . . χεῖρε βαλόντε” Od.21.223; “ἀμφὶ δὲ χεῖρας δειρῇ βάλλ᾽ Ὀδυσῆι” 23.208; “ἀμφὶ δὲ παιδὶ . . βάλε πήχεε” 24.347; but ἀμφὶ δὲ χεῖρας βάλλομεν, of seizing or taking prisoner, 4.454; also ἀμφὶ δὲ χεῖρα . . βάλεν ἔγχεϊ grasped it, 21.433; ἀμφὶ δὲ . . βάλε γούνασι χεῖρας, as a suppliant, 7.142.
3. c. acc. pers., encompass, embrace, “ἀμφιβαλόντε ἀλλήλους” Il. 23.97; “ἀ. τινὰ χερσί” E.Ba.1363; “ἀ. μαστὸν ὠλέναισι” Ph.306; “ἀ. μέλη” Supp.70.
4. encompass, beset, “δυσμενὴς ὅρι᾽ ἀμφιβάλλει” B.17.6; “πόλιν φόνῳ” E.Andr.799, cf. Trag.Adesp.127.6(lyr.); ἀ. φῦλον ὀρνίθωνsurround them with nets, S.Ant.344; strike or hit on all sides, “τινὰ βέλεσι” E.HF422.
III. doubt, “περί τινος” Plb. 39.5.2: also folld. by inf., Hld.5.17; by ὡς . . Ael.NA9.33; by ὅτι . . Hermog.Id.2.10; “περί τινος” Id.Meth.23.
2. to be doubtful or in dispute, Arist.EE1243a12,25; ἀμφιβάλλειν εἴωθε τὰ φίλτρα are uncertain in their action, Alciphr.1.37:—Pass., to be in dispute, Simp.in Ph.21.11.
V. Med., change, “μορφήν” Opp.C.3.16.