At my chapter we were always told that the proper "nickname" was Tri Delta, no Tri-Delta, no Tri-Delt. I would always aruge with my friend who goes to FSU cause he would call me a Delt or a Tri-Delt.
Then I was looking at this.
http://greeklife.fsu.edu/tomahawk/20...20Tomahawk.pdf
if you scroll down to the Delta Delta Delta one, they say Tri-Delt.
So which is it?