Yrða

EYMA1

sagnorð
d, [aumr], to feel sore; in the phrase, e. sik, to wail, Hom. 155: reflex., eymask, id., Post. (Fr.)
β. impers., in the metaph. phrase, það eymir af e-u, one feels sore, of after-pains, Fas. iii. 222: in mod. usage also of other things, whatever can still be smelt or felt, as if it came from eimr, q. v.