perpetuus (relatively, with reference to a definite end; that of life, for example): sempiternus (like αΐδιος, the everlasting, lasting as long as time itself) :aeternus (like αὶώνιος, the eternal, that which outlasts all time, and will be measured by ages, for tompus est pars quaedam aeternitatis. The sublime thought of that which is without beginning and end, lies only in aeternus. Döderlein): immortalis (having a beginning, but no end). (The words are found in this connection and order.) perpetuus et aeternus; perpetuus et sempiternus. Eternal snows, nives, quas ne aestas quidem solvit: eternal friendship, perpetua et aeterna amicitia: eternal hatred, odium inexpiabile (in aliquem): to give an eternal duration to anything, aeternitate rem donare.