Quick Definition
ψηφίζω v. I reckon, compute
Strong's Definition
from 5586; to use pebbles in enumeration, i.e. (generally) to compute
KJV Usage: count
UBS Dictionary of the Greek New Testament
verb | ψώχω
60.4 · Number · Number, Countless
to count, to calculate, to add up, to figure out to count up or calculate a total This process of ‘adding up the number of the beast’ involved calculating the total based upon the numerical values of each of the letters of the name. For another interpretation of ψηφίζω in REV 13:18, see 32.15.
32.15 · Understand · Come To Understand
to come to understand, to interpret, to figure out to come to understand the meaning of something by figuring it out The third person imperative form ψηφισάτω in REV 13:18 is extremely difficult to render in some languages, and even in English the expression ‘let him understand’ is quite misleading, since it might imply permission rather than polite command. In some languages the equivalent of this third person imperative is an expression such as ‘should understand’ or ‘ought to be able to understand.’ For another interpretation of ψηφίζω in REV 13:18, see 60.4.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Mounce Concise Greek Dictionary
ψηφίζω psēphizō 2x
to reckon by means of pebbles, compute by counters; hence genr. to compute, reckon, calculate, Lk. 14:28; Rev. 13:18*
Abbott-Smith Greek Lexicon
ψηφίζω
(< ψῆφος), [in LXX: III Ki 3:8 8:5 A (ספר ni..) * ;]
to count (prop., with pebbles), reckon, calculate: τ. δαπάνην, Lk 14:28; τ. ἀριθμόν (i.e. calculate the number's meaning), Re 13:18 (in cl. chiefly mid., to vote by casting a pebble; cf. συγ-κατα-, συμ-φηφίζω).†
Liddell-Scott-Jones — Greek-English Lexicon
ψηφίζω (psēphizō) — to calculate. ψηφ-ίζω, future Attic dialect -ιῶ (ἐπι-) [Refs 4th c.BC+]: aorist ἐψήφισα [Refs 5th c.BC+]perfect ἐψήφικα (ἐπ-) [Refs 5th c.BC+]:— middle, see below [Refs]:—passive, see below [Refs]:—count, reckon, properly with pebbles (ψῆφοι), [Refs 2nd c.BC+]; ψ. δακτύλοις Plu. [prev. cited]
2. ἐὰν ψηφίσῃς τὸ ἓν ἐν γράμμασιν, i.e. if you add up the numerical values of the letters in the word ἕν, [Refs]
II. more frequently in middle ψηφίζομαι: future Attic dialect ψηφιοῦμαι [Refs 5th c.BC+] is falsa lectio where found, e.g. in [Refs 5th c.BC+] in middle sense, [Refs 5th c.BC+]:—properly, cast one's vote with a pebble:
II.1. absolutely, εἰς ὑδρίαν ψ. [Refs 5th c.BC+]: generally, vote, ψήφῳ ψηφίζεσθαι μὴ φεύγειν [Refs 5th c.BC+]; τοῖς νόμοις ψηφίσασθαι vote in support of the laws, [Refs 5th c.BC+]
II.2. with accusative, vote for, carry by vote, τὸν πόλεμον [Refs 5th c.BC+]; ψηφίσασθαί τινι τὸν πλοῦν vote him the voyage, [Refs 5th c.BC+]; κλῆρόν τινι ψ. to adjudge it to.., [Refs 4th c.BC+] vote him a god, [Refs 1st c.AD+]
II.3. with infinitive, vote, resolve to do something, with infinitive present, ψ. μένειν [Refs 5th c.BC+]; ψ. τι δρᾶν [Refs 4th c.BC+]: with infinitive aorist, ψ. νέας ἀποστεῖλαι [Refs 5th c.BC+]infinitive future, ψ. πάντας ἀποσφάξειν (better ἀποσφάξαι as codex P) [Refs 1st c.BC+]: with accusative et infinitive, vote that.., ψ. τὰς σπονδὰς λελύσθαι [Refs 5th c.BC+]
II.4. ψ. περί, ὑπέρ τινος, [Refs 5th c.BC+]
III. active is used in signification decide by vote, δίκην κατ᾽ ἄλλου.. ἐψήφισαν [Refs 5th c.BC+], and is also found in [Refs 2nd c.BC+]; ψηφίζομεν is uncertain in [Refs 2nd c.AD+] —passive, aorist ψηφισθῆναι be voted, τοῖς στρατηγοῖς εἴ του προσδέοιντο ψηφισθῆναι ἐς τὸν ἔκπλουν [Refs 5th c.BC+]: future, τὰ ψηφισθησόμενα [Refs 5th c.BC+]: perfect, ἐψηφισμένοι θανεῖν condemned by vote, [Refs 5th c.BC+]