LSJ Gloss:ἀποβολήa throwing awayDodson:ἀποβολήa casting away, rejection, lossa casting away, rejection, a loss.
Strong's:ἀποβολή rejection; figuratively, lossDerivation: from G577;KJV Usage: casting away, loss. G577
TBESG:ἀποβολήdeprivationG:N-F ἀπο-βολή, -ῆς, ἡ (< ἀποβάλλω); __1. a throwing away, rejection: opp. to πρόσλημψις, Rom.11:15. __2. a losing, loss: Act.27:22.† (AS)
Thayer:1) rejection, repudiation 1a) to throw away from one's self, cast off, repudiate 2) a losing, a loss
ἀποβάλλω apoballō ap-ob-al'-lo From G575 and G906; to throw off; figuratively to loseKJV Usage: cast away.
ἀπόβλητος apoblētos ap-ob'-lay-tos From G577; cast off, that is, (figuratively) such as to be rejectedKJV Usage: be refused.