Bliss

Bliss (blĭs), n.; pl. Blisses (blĭs"ĕz). [OE. blis, blisse, AS. blis, blīðs, fr. blīðe blithe. See Blithe.] Orig., blithesomeness; gladness; now, the highest degree of happiness; blessedness; exalted felicity; heavenly joy.

An then at last our bliss
Full and perfect is.
Milton.

Syn. -- Blessedness; felicity; beatitude; happiness; joy; enjoyment. See Happiness.