For the record, only the first form can truly be considered a "stage", as after hitting the second form for the first time, the vampire is free to switch between the second through fourth forms at will, provided they have enough of their precious sanguis
to maintain the "higher" forms (a combination of Life Energy
for vampires, that is basically blood in metaphysical form
; compare Vitae
in World of Darkness
's vampire lines). And as noted, if a vampire is driven the point of malnourshiment, they would end up temporarily locked into the first form until they properly feed themselves back to a healthier state.
Maybe "Requiem form" for the first stage (as it's the mass for the dead, so most appropriate for the earliest form), and "Memorium form" for the second stage (as it harkens back to their human form).
Maybe the "Calyx form" or "Calyxate form" for the third (Latin for "bud, burgeon", referring to their growing powers, as well as the name of the part of a flower which protects the bud—beastliness sheathed in humanity).
Makes sense, though it sounds under-impressive for a vampire IMO.
The fourth form... I'm inclined to say "hellbeast", but that might make a better colloquial term, rather than the vampire's name for it. Maybe "Belua form" (or Beluam or however it's conjugated for an adjective)—it means "beast, fiend, fiendish person" but it sounds a lot more elegant.
I was going to use "Abomination form", but then thought it was too long. Maybe I should go the Rule of Cool
neologism route and name it "Abhorrid form". (Combines "abhor" with "horrid", with the note that the former's "-hor" part derives from the same Latin root as "horrid".)
edited 22nd Apr '13 6:02:21 PM by MarqFJA