Aurora:
From Aurora(Latin for Dawn)
Ignis:
Latin for Fire.
Fontaine:
Fountain as you mentioned.
Greenleaf:
Green and leaf as you said.Basically,it is refered as fresh leaves.
Violight:
Violet and lightning.
Chrysalia:
From chrysalis.
Pugilis:
Pugnus(Latin for fist) or Pugilis(Latin for boxer)
Illusio:
From Illusion
Terera:
From terra(Latin for earth)
Cragspur:
Crag(A rock formation) and spur is a subsidiary summit of a hill or mountain.
Yaksha:
Yaksha is the name of a broad class of nature-spirits, usually benevolent, who are caretakers of the natural treasures hidden in the earth and tree roots.
Viperia:
From viper
Avia:
From avis(Latin for bird)
Spectra:
From spectre
Valora:
From Valor
Nixtorm:
From nix(Latin for snow) and storm.
Dragnor:
From Dragon