(a) a pebble, small stone, (b) hence, from their use in voting: a vote.
Strong's:
ψῆφος
a pebble (as worn smooth by handling), i.e. (by implication, of use as a counter or ballot) a verdict (of acquittal) or ticket (of admission); a vote Derivation: from the same as G5584;
ψῆφος, -ου, ἡ (< ψάω, to rub) [in LXX: Exo.4:25 (צֹר), La 3:16 (חָצָץ), Ecc.7:26 (25) (צֹר), 4Ki.12:4 (5) A, Refs Sir.18:10, 4Ma.15:26 * ;] __1. a small smooth stone, a pebble: ψ. λευκή (for suggestions as to the meaning, see Swete, in l), Rev.2:17. __2. From the use of pebbles in voting, a vote: Act.26:10.† (AS)
Thayer:
1) a small worn smooth stone, a pebble 1a) in the ancient courts of justice the accused were condemned by black pebbles and the acquitted by white 2) a vote (on account of the use of pebbles in voting)
ψῆφος
psēphos
psay'-fos
From the same as G5584; a pebble (as worn smooth by handling), that is, (by implication of use as a counter or ballot) a verdict (of acquittal) or ticket (of admission); a vote
G5584 ψηλαφάωψηλαφάω
psēlaphaō
psay-laf-ah'-o
From the base of G5567 (compare G5586); to manipulate, that is, verify by contact; figuratively to search for
KJV Usage: feel after, handle, touch.
G5585 ψηφίζωψηφίζω
psēphizō
psay-fid'-zo
From G5586; to usepebbles in enumeration, that is, (genitive case) to compute