to bloom, to blossom
From CE root “flower” LOT(H), loth + T(a) –> lothta –> losta
Based on ancient root “sleep” (O)LOS/R (in PE 17 LOR rather than LOS). See lor-: 'sleep'
thosta- “stink” (VT46:19)
CE kothta > S cost.
Hialmr, Alexander Zaprjagaev
David Salo