Prideful is from pride (from Old English pryde, prytu 'pride', from prud 'proud') + the suffix -ful. Important recorded forms include pryde (Old English) and -ful (Old English). Morphologically, the word preserves a built structure whose named elements carry the historical sense into English. The modern sense remains close to that composition, with the parts narrowing into a single lexical item. In current use it covers full of pride, especially in an arrogant or disdainful way. The wider family includes derived forms such as pridefully and pridefulness and related words such as pride and proud.