ἐξελιγμός
From LSJ
Πυλάδη, σε γὰρ δὴ πρῶτον ἀνθρώπων ἐγὼ πιστὸν νομίζω καὶ φίλον ξένον τ' ἐμοί → Pylades for indeed I consider you, foremost among men, loyal and kind and a host to me (Euripides' Electra 82-83)
English (LSJ)
ὁ,
A countermarching, ἐ. Μακεδονικός, Λακωνικός, Κρητικός, Ascl.Tact.10.13, 14, 15, cf. Arr.Tact.23.2,3,4; οἱ ἐπὶ τῶν ἵππων ἐ. Them.Or.1.2b. II doubling, of the hare, Arr.Cyn.16.3 (pl.); so of turning movements in walking or driving a hoop, Antyll. ap. Orib. 6.21.18, 26.1. III revolution of the heavenly bodies, Nicom.Ar.1.6. 2 esp. of the shortest period containing a whole number of synodic months, days, and ἀποκαταστάσεις of the moon, Gem.18.1, Ptol.Alm. 4.2.