From Middle English -ful, -full, from Old English -ful, -full (“full of; -ful”), from Proto-Germanic *-fullaz (“-ful”), from Proto-Germanic *fullaz (“full”); see full. Cognate with Saterland Frisian -ful (“-ful”), West Frisian -fol (“-ful”), Dutch -vol (“-ful”), German -voll (“-ful”), Swedish -full (“-ful”), Icelandic -fullur, -fyllur (“-ful”).
- Used to form adjectives from nouns. Full of, tending to, or thoroughly possessing the quality expressed by the noun.
- Used to form nouns from nouns meaning “as much as can be held by what is denoted by the noun”
- Used to form nouns indicating a great deal of the quantity expressed by the noun.