MCINTOSH

The son of the leader or first. Tosh, and Toshich, signify the beginning or first part of any thing; so Toshich came to denote the general or leader of the van. The McIntoshes derive themselves from McDuff, who obtained his right from Malcom Canmore.

Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.