A primitive root; to be smooth, i.e. (figuratively) pleasant -- be sweet.
H4452. malats
[מָלַץ] verb probably be smooth, slippery (Arabic slip); —
Niph`al Perfect לְחִכִּי מַהנִּֿמְלְצוּ אִמְרָתֶ֑ךָ Psalm 119:103 how smooth (agreeable, pleasant) are thy words to my palate ("" לְפִי מִדְּבַשׁ).