English
hilling
From hill + -ing.
A compound of hill + -ing
Proto-Indo-European *kl̥Hnís ‘top, hill, rock’
Proto-Germanic *hulliz ‘hill’
Proto-West Germanic *hulli ‘hill’
Old English hyll ‘hill’
Middle English hil ‘hill’
English hill
Today it means
noun The act or process of heaping up earth around plants.
Language periods are conventional ranges, not dates for this word.
Etymograph / hilling