sempiternal

Adjective

WordNet 3.0

having no known beginning and presumably no end“the dateless rise and fall of the tides”“time is endless”“sempiternal truth”Synonyms: dateless endless

Sempiternal \Sem`pi*ter"nal\, a. [L. sempiternus, fr. semper always: cf. F. sempiternel.]

1.Of neverending duration; everlasting; endless; having beginning, but no end. --Sir M. Hale. [1913 Webster]

2.Without beginning or end; eternal. --Blackmore. [1913 Webster]