elegiac

As adjectives the difference between elegiac and elegiack

is that elegiac is of, or relating to an elegy while elegiack is obsolete form of elegiac.

As nouns the difference between elegiac and elegiack

is that elegiac is a poem composed in the couplet style of classical elegies: a line of dactylic hexameter followed by a line of dactylic pentameter while elegiack is obsolete form of elegiac.

As nouns the difference between taxonomy and elegiac

is that taxonomy is the science or the technique used to make a classification while elegiac is a poem composed in the couplet style of classical elegies: a line of dactylic hexameter followed by a line of dactylic pentameter.

As an adjective elegiac is

of, or relating to an elegy.

As adjectives the difference between ethereal and elegiac

is that ethereal is pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; otherworldly; as, ethereal space; ethereal regions while elegiac is of, or relating to an elegy.

As a noun elegiac is

a poem composed in the couplet style of classical elegies: a line of dactylic hexameter followed by a line of dactylic pentameter.