Complex sentence: The name Caledon seemingly appears to be a shortern of the old Latin name for Scotland of "Caledonia", originating from the Pictish tribe of northern Scotland, the Caledonii meaning "great, hard/tough people".
Split into simpler sentences: The name Caledon appears to be a shortened version of Caledonia, the old Latin name for Scotland. Originating from the Pictish tribe of northern Scotland, the Caledonii, the term means "great, hard/tough people".