ἀριθμός *ἄρω number, Lat. numerus, Od., etc.; ἀριθμόν in number, Hdt., Attic; ἀριθμὸν ἕξ Hdt.; ἐς τὸν ἀρ. τρισχίλια Hdt.; also, ἓν ἀριθμῶι Hdt.; so in Attic amount, sum, extent, πολὺς ἀρ. χρόνου Aeschin.; ἀρ. ἀργυρίου a sum of money, Xen. as mark of station, worth, rank, μετʼ ἀνδρῶν ἀριθμῶι among men, Od.; οὐκ ἔχουσιν ἀριθμόν have no account made of them, Eur.; οὐδʼ εἰς ἀριθμὸν ἥκεις λόγων you come not into my account, Eur. mere number, quantity, opp. to quality, worth, ἀριθμὸς λόγων a mere set of words, Soph.; so of men, οὐκ ἀρ. ἄλλως not a mere lot, Eur.; so ἀριθμός alone, like Hor.ʼs nos numerus sumus, Ar. a numbering, counting, ἀριθμὸν ποιεῖσθαι τῆς στρατιῆς to hold a muster of the army, Hdt.; παρεῖναι εἰς τὸν ἀρ. Xen. the science of numbers, numeration, arithmetic, Aesch., Plat.