word-forming factor attached to nouns (and in contemporary English to verb stems) and meaning "full of, having, described as," also "amount or volume contained" (handful, bellyful); from Old English -full, -ful, that will be full (adj.) be a suffix when you are coalesced with a preceding noun, but initially another term. Cognate with German -voll, Old Norse -fullr, Danish -fuld. Most English -ful adjectives at once or any other had both passive ("full of x") and active ("causing x; filled with occasion for x") senses. It is unusual in Old English and Middle English, where complete was more frequently connected within head of a term (as an example Old English fulbrecan "to violate," fulslean "to kill outright," fulripod "mature;" Middle English had ful-comen "attain (a situation), recognize (a truth)," ful-lasting "durability," ful-thriven "full, perfect," etc.).
A suffix signifying high in, abounding with; since, boastful, harmful, woeful.
(a.) A suffix signifying saturated in, abounding with; since, boastful, harmful, woeful.