Meaning

noun (music) a curved line spanning notes that are to be played legato

noun a disparaging remark

noun a blemish made by dirt

originFrom Middle English sloor (“thin or fluid mud”). Cognate with Middle Low German sluren (“to trail in mud”). Also related to dialectal Norwegian sløra (“to be careless, to scamp, dawdle”), Danish sløre (“to wobble, be loose”) (especially for wheels); compare Old Norse slóðra (“to drag oneself along”). * (an extremely offensive term): Influenced by various compounds of sense 1 such as racial slur,…

Etymology from Wiktionary, CC BY-SA 3.0