Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
ατεκνίαν childlessness LXX.Ps.35.12
ατεκνία childlessness LXX.Isa.47.9

Liddell-Scott-Jones

ἀτεκνία (ateknia) childlessness G:N-F

ἀτεκνία-ία, ,

childlessness, barrenness, [Refs 4th c.BC+]