A noun in The Etymologies of the 1930s, the equivalent of ᴹQ. kilya “cleft, pass between hills, gorge” and a derivative of ᴹ√KIL “divide” (Ety/KIL). Its most notable use was in the transient name N. Cilthoron(dor); this name eventually became S. Cirith Thoronath “Eagles’ Cleft”, so likely N. cîl became S. cirith.
A noun in The Etymologies of the 1930s, the equivalent of ᴹQ. kilya “cleft, pass between hills, gorge” and a derivative of ᴹ√KIL “divide” (Ety/KIL). Its most notable use was in the transient name N. Cilthoron(dor); this name eventually became S. Cirith Thoronath “Eagles’ Cleft”, so likely N. cîl became S. cirith.