guarantee
From LSJ
ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English > Greek (Woodhouse)
v. trans.
Ar. and P. ἐγγυᾶσθαι. Promise: P. and V. ὑπισχνεῖσθαι, P. ὑποδέχεσθαι, V. ὑπίσχεσθαι; see promise. Give security: P. and V. πίστιν διδόναι or πιστἄ διδόναι. subs. P. and V. πίστις, ἡ, πιστά, τά, ἐγγύη, ἡ. Promise: P. and V. ὑπόσχεσις, ἡ. One who guarantees: Ar. and P. ἐγγυητής, ὁ.