CLEFT

I. noun Etymology: Middle English clift, from Old English geclyft; akin to Old English clēofan to cleave Date: 14th century a space or opening made by or as if by splitting ; fissure , a usually V-shaped indented formation ; a hollow between ridges or protuberances , II. adjective Etymology: Middle English, from past participle of cleven Date: 14th century partially split or divided