The Greek that is translated as “cross” in English is often referred to a description of the shape (in Chinese, for instance it is translated as 十字架 shízìjià — “10-character-frame” because the character for “10” has the shape of a cross), elsewhere it refers to the function, e.g. a coined term, made up of two Sanskrit words, meaning “killing-pole” (Marathi NT revision of 1964), “wood to-stretch-out-with” (Toraja-Sa’dan), or “nailing pole” (Zarma). A combination of the two seems to be used in Balinese, which employs a word for the crossbeams in a house, derived from a verb that can refer both to a beam that stretches from side to side under a roof, and to a person stretched out for torture (source for this and above: Reling / Swellengrebel). Similarly, in Lamba it is translated “with umutaliko — ‘a pole with a cross-piece, on which maize was normally tied’ from the verb ‘talika’ which, strangely enough, is used of ‘holding down a man with arms and legs stretched out, someone gripping each limb.'” (Source C. M. Doke in The Bible Translator 1958, p. 57ff.)
“In Mongolian, the term that is used is togonoltchi mott, which is found in the top of a tent. The people on the steppes live in round felt-yurts and the round opening on the top of the tent serves as a window. The crosswood in that opening is called togonoltchi mott. ‘Crucified’ is translated ‘nailed on the crosswood.’ This term is very simple, but deep and interesting too. Light comes to men through the Cross. What a privilege to be able to proclaim such a message.” (Source: A. W. Marthinson in The Bible Translator 1954, p. 74ff.)
See also crucify.