looks like Calvary is Latin and Golgotha is the Greek transliteration of the Aramaic word for "skull"
a Google search came up with this
http://www.olivebranch.com/isreal/galgoitha.htm Easton's Dict. [golgotha] # 1522 Golgotha the common name of the spot where Jesus was crucified. It is interpreted by the evangelists as meaning "the place of a skull" #Mt 27:33 Mr 15:22 Joh 19:17 This name represents in Greek letters the Aramaic word Gulgaltha, which is the Hebrew Gulgoleth #Nu 1:2 1Ch 23:3,24 2Ki 9:35 meaning "a skull." It is identical with the word Calvary (q.v.). It was a little knoll rounded like a bare skull. (cond. left)
and this
http://www.newadvent.org/cathen/03191a.htm NAME
Etymology and Use
The word Calvary (Lat. Calvaria) means "a skull". Calvaria and the Gr. Kranion are equivalents for the original Golgotha. The ingenious conjecture that Golgotha may be a contraction for Gol Goatha and may accordingly have signified "mount of execution", and been related to Goatha in Jer., xxi, 39, has found scarcely any supporters. The diminutive monticulus (little mount) was coupled with the name A.D. 333 by the "Pilgrim of Bordeaux".
Towards the beginning of the fifth century Rufinus spoke of "the rock of Golgotha". Since the sixth century the usage has been to designate Calvary as a mountain. The Gospel styles it merely a "place", (Matt. xxvii, 33; Mark xv, 22; Luke, xxiii, 33; John, xix, 17).