I think
Tess is nice as a full name, I don't like it when people give their kids a name, and know they will give it another nn. I think if you want to call your child
Tess, you should call your child
Tess and not
Tessa or
Teresa or something like that.
middle names:
Tess AlexiaTess AliceTess AmaryllisTess AriadneTess DamarisTess DoloresTess ElinorTess FlorenceTess GuinevereTess GwendolenTess HelenaTess KristenTess MercedesTess NatashaTess NerysTess Valentina