 He believed it referred to bands of outcast Gaelic raiders, suggesting that the Scots were to the Gaels what the Vikings were to the Norse.The 19th century author "Aonghas MacCoinnich" of Glasgow proposed that "Scoti" was derived from a Gaelic ethnonym (proposed by MacCoinnich) "Sgaothaich" from "sgaoth" "swarm", plus the derivational suffix "-ach" (plural "-aich") However, this proposal to date has not been met with any response in mainstream place-name studies.Pope Leo X (1513–1521) decreed that the use of the name Scotia be confined to referring to land that is now Scotland.