I answered you on Opinions as well, but here what I said. :-)
Trig is a Norse word meaning "true" and "brave victory." The name is in honor of his great uncle, a Bristol Bay fisherman (
http://www.celebrity-babies.com/2008/04/alaskan-governo.html)
Trygg is also a Scandinavian surname.
TRYGG
Scandinavian: from the Old Norse byname
Tryggr ‘trustworthy’, ‘faithful’.
English: variant of Trigg.
http://www.ancestry.com/facts/trygg-places-origin.ashx
TRIGG
English: from the Old Norse byname
Triggr meaning ‘trustworthy’, ‘faithful’, a cognate of Trow 1.
http://www.ancestry.com/facts/Trigg-places-origin.ashx