laîssi
From Old French lesser, laisier (“to let, let go, leave”), partly from Latin laxō, laxāre (“relax, loosen”), partly from or influenced by Old High German lāzzan, lāzan (“to let, let go, leave”), from Proto-Germanic *lētaną (“to let, leave, leave alone”), from Proto-Indo-European *lēy-, *lēi-d- (“to leave, let”).