My Lands: Black Gem Hunting

does anyone know if there are runes of five runes ?

None as of right now. Guide still says rune words consist of 2-4 runes.

all the runic words are discovered by players... trying and spending gems to take the runes off.... I have quest to put 5 runs to an artefact, so may be the runic words from 5 pieces only wait to be discovered
so... why you not try?
PS. I can tell you that 5 feoh on the backpack not make a runic word
good luck