옅 (yeth-, “to humbly ask”) + ᄌᆞᆸ (-cop-, object-honoring suffix).
엳〯ᄌᆞᆸ다〮 (yětcòptá) (infinitive 엳〯ᄌᆞᄫᅡ〮, sequential 엳〯ᄌᆞᄫᆞ〮니〮)