The Lovecraftian was invented by Simon Whitechapel to be used in a forthcoming sequel to David M. Mitchell's Lovecraft tribute The Starry Wisdom. It's intended for transliterating the Roman alphabet.
I am forced into speech because men of science have refused to follow
my advice without knowing why. It is altogether against my will that I
tell my reasons for opposing this contemplated invasion of the antarctic.
H.P. Lovecraft, At the Mountains of Madness (1936)
by Alan Moore
by H.P. Lovecraft
H.P. Lovecraft archive
Information about H.P. Lovecraft on Wikipedia