A noun for “gestation” in notes on Elvish life cycles from 1959, appearing in the form colbamarië and colbanavië (NM/91, 120). The initial element is colba in both cases, which might mean “womb” based on the root √KOL “bear, carry”. The final elements are marië (perhaps = “dwelling”) and navië (probably = “being”), so the literal meanings may be “*womb-dwelling” and “*womb-being”.