εἰκοστός, ή, όν,
twentieth, [[ 8th c.BC: Odyssea Homerus Epicus “Odyssey” 5.34, etc.] Refs 8th c.BC+]; Epic dialect also ἐεικοστός [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 24.765. ] Refs 8th c.BC+]
__II εἰκοστή, ἡ, a tax of a twentieth, εἰ. τῶν γιγνομένων, τῶν κατὰ θάλασσαν, [[ 5th c.BC: Thucydides Historicus 6.54, 7.28. ] Refs 5th c.BC+]
__II.2 εἰ. ἐλευθερίας or -ιῶν, = Latin vicesima manumissionum, [[ Inscriptiones Graecae 3.1446, “BGU” 96.8, etc. ] Refs]