Smolt
Origin 1
From Middle English smolt, smylt, from Old English smolt, smeolt ("mild, peaceful, serene, still, gentle, clear, bright"), from Proto-Indo-European *smultaz, *smeltaz ("quiet, gentle"), from Proto-Indo-European *(s)meld- ("to beat, grind, crush, make weak"). Cognate with Scots smolt ("calm"), Old Saxon smultro ("quiet"), Middle Dutch smolt, smout ("weak, gentle, quiet"), Middle High German smolz ("dear, lovely, beautiful, sheen").
Full definition of smolt
Adjective
smolt
Origin 2
Probably an alteration of smelt, due to smolt ("smooth"). See above.