hägra

Etymology
Probably originally meaning "make higher." Compare how mirages sometimes hover over the horizon.

Verb

 * 1) to appear (vaguely and) alluringly (to someone's senses or in someone's mind); to loom, to beckon, etc.
 * 2)   to appear as a mirage (more generally)
 * 1)   to appear as a mirage (more generally)
 * 1)   to appear as a mirage (more generally)
 * 1)   to appear as a mirage (more generally)

Usage notes
Originally figuratively from, though this intuition might be lost to many native speakers.