Liddell-Scott-Jones

ἐγγυάω (enguaō) to guarantee a loan ^G:V

ἐγγυάω,

imperfect ἠγγύων (παρ-) [Refs 5th c.BC+]: aorist ἠγγύησα [Refs 5th c.BC+]: perfect ἠγγύηκα [Refs 2nd c.AD+]: pluperfect ἠγγύηκει [Refs 4th c.BC+]:—middle, future -ήσομαι [Refs 4th c.BC+]: aorist ἠγγυησάμην [Refs 5th c.BC+]:—passive, aorist ἠγγυήθην (ἐξ-, κατ-) [Refs 5th c.BC+]: perfect ἠγγύημαι [Refs 5th c.BC+]:—also treated as a compound, ἐνεγυησάμεθα [Refs 3rd c.BC+], and frequently in codices: imperfect ἐνεγύων [Refs 4th c.BC+]perfect ἐγγεγύηκα[Refs 4th c.BC+]: imperfect passive ἐνεγυᾶτο [Refs 4th c.BC+]: perfect ἐγγεγύημαι [Refs 4th c.BC+]: pluperfect ἐνεγεγύητο [Refs 4th c.BC+]: but these forms are incorrect: (ἐγγύη):—give or hand over as a pledge:—middle, have a thing pledged to one, accept as a surety, δειλαί τοι δειλῶν γε καὶ ἐγγύαι ἐγγυάασθαι [Refs 8th c.BC+]

__2 especially of a father, plight, betroth, θυγατέρα ἐγγυᾶν τινι [Refs 5th c.BC+]; Ζεὺς ἠγγύησε καὶ δίδως᾽ [Refs 5th c.BC+]:—middle, have a woman plighted or betrothed toone, with accusative, [Refs 4th c.BC+]:—active and middle opposed, [Refs 5th c.BC+]:—passive, of the man, to be betrothed, θυγατρί τινος [Refs 5th c.BC+]
__II middle, pledge oneself, give security, ἐγγύας ἐγγυησάμενοι πρὸς τὸ δημόσιον [Refs 5th c.BC+]
__II.2 with accusative et infinitive future, promise or engage that.., [Refs 5th c.BC+]
__II.3 c.accusative of things, answer for, ἐγγυᾶσθαι τὰ μέλλοντ᾽ ἔσεσθαι [Refs 5th c.BC+]; ἐγγυᾶσθαί τινά τινι give surety for him to another, [Refs 5th c.BC+]; ἐ. τὰ μετέωρα give guarantees without security, [Refs 3rd c.BC+]