Strong's Greek #710 - ἀριστερός, ά, όν aristeros (better)

left hand.

Apparently a comparative of the same as ariston; the left hand (as second-best) -- left (hand).

see GREEK ariston

Strong's 710: ἀριστερός

ἀριστερός, ἀριστερά, ἀριστερόν, left: Matthew 6:3; Luke 23:33; (Mark 10:37 T Tr WH, on the plural cf. Winer's Grammar, § 27, 3); ὅπλα ἀριστερά i. e. carried in the left hand, defensive weapons, 2 Corinthians 6:7. (From Homer down.)

Strong's Greek: 710. ἀριστερός (aristeros) — 4 Occurrences

Matthew 6:3 - Adj-NFS
GRK: γνώτω ἡ ἀριστερά σου τί
NAS: But when you give to the poor, do not let your left hand know
KJV: not thy left hand know what
INT: let know the left [hand] of you what

Mark 10:37 - Adj-GMP
GRK: εἷς ἐξ ἀριστερῶν καθίσωμεν ἐν
NAS: and one on [Your] left, in Your glory.
INT: one at your left hand we might sit in

Luke 23:33 - Adj-GMP
GRK: δὲ ἐξ ἀριστερῶν
NAS: and the other on the left.
KJV: the other on the left.
INT: moreover on [the] left

2 Corinthians 6:7 - Adj-GMP
GRK: δεξιῶν καὶ ἀριστερῶν
NAS: for the right hand and the left,
KJV: on the right hand and on the left,
INT: right hand and left