Lexical Definition

‎χρηστός‎ chrēstós (khrase-tos') good/kind ^G:A
from ‎χράομαι‎

better, easy, good(-ness), gracious, kind.

• employed, i.e. (by implication) useful (in manner or morals)

Abbott-Smith

χρηστός, -ή, -όν (< χράομαι), [in LXX chiefly for טוֹב (freq. of God: Ps 24 (25):8*, al.), also for יָקָר (Ez 27:22 28:13), יָשָׁר (Pr 2:21 א A) ;]
serviceable, good;
(a) of things, good, pleasant: of food (as often in cl.), οἶνος, Lk 5:39; ζυγός, Mt 11:30 (EV, easy); in ethical sense, ἤθη, I Co 15:33;
(b) of persons, good, kind, gracious: Eph 4:32; of God, Lk 6:35, I Pe 2:3; τ. χρηστὸν (= ἡ χρηστότης) τοῦ θεοῦ, Ro 2:4.†

Abbott-Smith References

Liddell-Scott-Jones

χρηστός, ή, όν,

(χράομαι) of things, like{χρήσιμος}, useful, good of its kind, serviceable, [τόξα] χρηστὰ οὐδέν [Refs 5th c.BC+]; [γῆ] [Refs 5th c.BC+]; οἰκία, opposed to μοχθηρά, [Refs 5th c.BC+]; ἡ χ. μέλιττα, opposed to οἱ κηφῆνες, [Refs 4th c.BC+]: frequently of wholesome food, μελίτωμα [Refs]; ποτόν, σῖτος, [Refs 5th c.BC+]: with genitive, for a thing, νεύρων for the sinews, [Refs 4th c.BC+] (but pleasant to taste, nice, [Refs 5th c.BC+]; of victims and omens, auspicious, ἱρά, σφάγια, [Refs 5th c.BC+]; τελευτὴ χ. a happy end or issue, [Refs]: plural, τὰ χ., as substantive, benefits, kindnesses, [Refs]; χρηστόν τι συμβουλεύειν, χρηστὰ ἐπιτηδεύειν, [Refs 5th c.BC+]; χρηστὰ λέγειν, πράττειν, etc., [Refs 4th c.BC+] also, happy event, ἐκτελοῖτο δὴ τὰ χ. [Refs 4th c.BC+]; prosperity, success, τὰ χ. δ᾽ αὔθ᾽ ἕκαστ᾽ ἔχει φίλους [Refs 5th c.BC+]

__2 in moral sense, opposed to κακός, [Refs 5th c.BC+]; opposed to πονηρός, [Refs 5th c.BC+]; τὸ χ., opposed to τὸ αἰσχρόν, [Refs 5th c.BC+]; χρηστός, opposed to λυπρός, [Refs 5th c.BC+] if working for good, [Refs 5th c.BC+]
__3 good for its purpose, effective (even for evil), τραῦμα, δῆγμα, [Refs 2nd c.AD+]
__4 Grammars, in use, current, ποιηταῖς χρηστά [Refs]
__II of persons, good, especially in war, valiant, true, [Refs 5th c.BC+]: generally, good, honest, worthy, [Refs 5th c.BC+]; of women, ἐρεῖ τις ὡς Κλυταιμνήστρα κακή· Ἄλκηστιν ἀντέθηκα χρηστήν [Refs 4th c.BC+]; of good citizens, useful, deserving, [Refs 5th c.BC+]; but also ironically, ὁ χ. οὑτοσί [Refs 4th c.BC+]
__II.b frequently on Epitaphs, [Refs]
__II.c with infinitive, ὅσοι προβατεύειν χ. [Refs 4th c.AD+]
__II.2 οἱ χρηστοί, like{οἱ ἀγαθοί}, those of good family, [Refs 5th c.BC+]
__II.3 of the gods, propitious, merciful, bestowing health or wealth, θεῶν χρηστῶν ἥκειν εὖ [Refs 5th c.BC+]
__II.4 of men, good, kindly, δούλῳ.. χ. γενόμενός ἐστι δεσπότης πατρίς [NT+4th c.BC+]
__II.4.b sometimes simple, silly, like{εὐήθης, χρηστὸς εἶ ὅτι ἡγῇ}.., you're a nice fellow, to think that.., [Refs 5th c.BC+]
__II.5 of a man, strong, able in body for sexual intercourse, ={γυναικὶ χρῆσθαι δυνάμενος}, [Refs 5th c.BC+]
__II.6 of the dead, whence χρηστὸν ποιεῖν ={ἀποκτιννύναι}, in a treaty between the Spartans and Tegea, [Refs 4th c.BC+]
__III adverb -τῶς well, properly, [Refs 5th c.BC+]

_{LSJ Scripture Refs: Luke.6.35 ☩ Eph.4.32}