 Scholars have long known that the Greek word "stauros" and the Latin word "crux" did not uniquely mean a cross.They have known too that the words had that meaning also, and so have not considered necessarily incorrect the traditional picture of a cross with transom.The ambiguity of the terms was noted by Justus Lipsius in his "De Cruce" (1594), Jacob Gretser in his "De Cruce Christi" (1598) and Thomas Godwyn in his "Moses and Aaron" (1662).