ἀριθμῶν (arithmon)
ἀριθμῶν is an Ancient Greek form of ἀριθμός, meaning “number”.
It can also be a form of ἀριθμέω, “count”. It is the present active participle nominative singular masculine.
Found 166 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 5.20.3: κατὰ θέρη δὲ καὶ χειμῶνας ἀριθμῶν, ὥσπερ γέγραπται, εὑρήσει, ἐξ ἡμισείας ἑκατέρου τοῦ ἐνιαυτοῦ τὴν δύναμιν ἔχοντος, δέκα μὲν θέρη, ἴσους δὲ χειμῶνας τῷ πρώτῳ πολέμῳ τῷδε γεγενημένους.
Diogenes Laertius, Vitae philosophorum 4.2.13: … ῶν περὶ τὴν διάνοιαν ἄλλα βιβλία δύο. Περὶ γεωμετρῶν βιβλία ε′. Ὑπομνημάτων α′. Ἐναντίων α′. Περὶ ἀριθμῶν α′. Ἀριθμῶν θεωρία α′. Περὶ διαστημάτων α′. Τῶν περὶ ἀστρολογίαν ς′.
All forms of ἀριθμός (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.