Lexical Definition

‎ἀπόθεσις‎ apóthesis (ap-oth'-es-is) removal ^G:N-F
from ‎ἀποτίθημι‎

putting away (off).

• a laying aside (literally or figuratively)

Abbott-Smith

* ἀπό-θεσις, -εως, ἡ (< ἀποτίθημι),
a putting away: I Pe 3:21, II Pe 1:14.†

Abbott-Smith References

Liddell-Scott-Jones

ἀπόθεσις, εως, ἡ,

(ἀποτίθημι) laying up in store, σκευῶν[Refs]; εἰς ἀ. γενέσθαι to be stored up, [Refs 5th c.BC+]; ἡ ἀ. τῆς τροφῆς, of bees,[Refs]; preserving, of fish, [Refs 3rd c.AD+]

__2 the final movement in setting a dislocated or fractured limb, [Refs 2nd c.AD+]in Hp.Fract.[Refs] C.; falsa lectio in [Refs 5th c.BC+]
__3 κατ᾽ ἀπόθεσιν, of internal abscesses, [Refs 2nd c.AD+]
__II putting aside, making away with, getting rid of, ῥύπου[NT]
__II.2 exposure of children, [Refs 4th c.BC+]
__II.3 resignation of an office, [Refs 2nd c.AD+]
__II.4 ἀ. κώλου, περιόδου, close or cadence of a phrase, [Refs 5th c.BC+]; so in metres, ={κατάληξις}, [Refs 7th c.AD+]
__III ={ἀποδυτήριον}, [Refs 2nd c.AD+]

_{LSJ Scripture Refs: 1Pet.3.21}