出典:Wiktionary
From Middle English lis, lisse, lysse, from 古期英語 liss, līs, līþs (“grace, favor, love, kindness, mercy, joy, peace, rest, remission, forgiveness, alleviation, salvation”), from Proto-Germanic *linþisjō (“rest”), from Proto-Indo-European *lent- (“bendsome, resilient”). Cognate with Danish lise (“solace, relief”), Swedish lisa (“solace, relief”). Related to 古期英語 līþe (“lithe, soft, gentle, meek, mild, serene, benign, gracious, pleasant, sweet”). See lithe.
liss (uncountable)
From Middle English lissen, lyssen, from 古期英語 lissan (“to subdue”), from 古期英語 liss. Cognate with Swedish lisa (“to soften, weaken”). See above.
出典:Wikipedia