The Proto-Indo-European word *smeru-
Word *smeru-
Meaning grease
Synonyms *sélpes-, *sméru-

Comments
Ir. smiur/, Gk. smuris, Lat. medulla, Gm. smero/Schmer, Welsh mer, Eng. smerian/smear, Polish smar, Toch. /ṣ mare, Lith. smarsas, ON smjǫ r, Goth. smaírþr