from
The Collaborative International Dictionary of English v.0.48
Eternity \E*ter"ni*ty\, n.; pl. {Eternities}. [F.
['e]ternit['e], L. aeternitas, fr. aeternus. See {Etern}.]
1. Infinite duration, without beginning in the past or end in
the future; also, duration without end in the future;
endless time.
[1913 Webster]
The high and lofty One, that inhabiteth eternity.
--Is. lvii.
15.
[1913 Webster]
2. Condition which begins at death; immortality.
[1913 Webster]
Thou know'st 't is common; all that lives must die,
Passing through nature to eternity. --Shak.
[1913 Webster]