мръждя

Etymology
,, an expressive variant of , (whence the more common ).

Verb

 * 1)  to wrinkle one's face, to pull in one's eyebrows, to frown, to make a wry face
 * 2)  to glimmer, to flicker (of light or fire)
 * 1)  to glimmer, to flicker (of light or fire)