The origin of Giant names and their multiple consonants *WIP*

The Legends of Lilienwelt: Kingdom of Nimue, Giants edition *WIP* says:
"In the year second year of The War with the Giants *WIP* a Vanilla boy made contact with a giantess being restrained in an abandoned warehouse on the edge of (Redacted), in the province of (Redacted).  "An interaction transpired wherein the giantess, using material from her on garments and a piece of contraband wire, made and 'gifted' a pair of mittens to the Vanilla boy. "Then next day the boy