χιτῶνας [4 verses](noun pl masc acc) "Coat" is chiton, which means "the garment worn next to the skin", "tunic [a men's]", "a coating", "a covering", "a membrane [anatomical]", "the upper part of a show", "vesture," and "coat of mail." -- "Coats" is the Greek word means an undergarment, not an over garment. Christ is literally saying, "Don't take two pairs of underwear." There is a certain humor in this that seems intentional.