The Collaborative International Dictionary
Giantship
Giantship \Gi"ant*ship\, n. The state, personality, or character, of a giant; -- a compellation for a giant.
His giantship is gone somewhat crestfallen.
--Milton.
Wiktionary
giantship
n. 1 The state, personality, or character of a giant. 2 (non-gloss definition: A compellation for a giant.)