Usage: 4 forms in 9 verses
Form Translated As     In Verse(s)
τρισκαιδεκάτω thirteenth LXX.Gen.14.4LXX.Jer.25.3
τρισκαιδεκάτου thirteenth LXX.Jer.1.2
τρισκαιδεκάτη thirteenth LXX.Esth.3.12LXX.Esth.8.12LXX.Esth.9.1LXX.Esth.9.16
τρισκαιδέκατοσ thirteenth LXX.1Chr.24.13LXX.1Chr.25.20

Liddell-Scott-Jones

τρισκαιδέκατος (triskaidekatos) thirteenth G:A

Related to: τρισκαιδέκατος-ος, η, ον,

thirteenth, [Refs 3rd c.BC+], etc.: τρισκ- occurs mostly later, [Refs 3rd c.BC+], and should be corrected in [Refs 8th c.BC+]; Aeolic dialect [τρις] καιδέκοτος [Refs]