Κ (K)
Κ is an Ancient Greek form of ἄν, meaning “modal particle: would, could; (with subj.) ever”. It is the particle.
Found 700 times in the Ancient Greek texts on Socratos.
Where it is used
Apollonius Rhodius, Argonautica 1.197: νόσφιν γʼ Ἡρακλῆος, ἐπελθέμεν, εἴ κʼ ἔτι μοῦνον
Diogenes Laertius, Vitae philosophorum 3.1.68: … νημμένους, ὧν τὸν ἐντὸς κύκλον ἑξαχῆ τμηθέντα τοὺς ἅπαντας ἑπτὰ κύκλους ποιεῖν. καὶ τοῦτον μὲν κατὰ διάμετρον κ〈ιν〉εῖσθαι ἐπʼ ἀριστερὰ ἔσωθεν, τὸν δὲ κατὰ πλευρὰν ἐπὶ τὰ δεξιά. διὸ καὶ κρατεῖν αὐτὸν ἕνα ὄντα· τὸν γὰρ ἕτερ …
Plutarch, Aratus 9.1: … οσεδόκων, ὥρμησαν ἀθρόοι πρὸς τὰς θύρας τοῦ τυράννου πῦρ ἐπιφέροντες. ἤρθη δὲ φλὸξ μεγάλη καὶ καταφανὴς μέχρι Κ. ορίνθου τῆς οἰκίας ἀναφθείσης, ὥστε θαυμάσαντας τοὺς ἐν Κορίνθῳ παρὰ μικρὸν ὁρμῆσαι πρὸς τὴν βοήθειαν. ὁ μὲν …
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.