Onomatopoeic. Compare English lullaby. lulla (present lullar, preterite <span class="searchmatch">lullade</span>, supine lullat, imperative lulla) (now rare) synonym of vyssja (“lull”)...
Possessive forms Singular Dual Plural 1st person lullán lulláme lullámet 2nd person lullát <span class="searchmatch">lulláde</span> lulládet 3rd person lullis lulliska lulliset...