Uncultivated is from un- ('not') + cultivated, past participle of cultivate, from Medieval Latin cultivare, from cultivus ('tilled'), from Latin colere ('to till, cultivate, worship'). Important recorded forms include un- (Old English), cultivare (Medieval Latin), colere (Latin), and *kʷel- (Proto-Indo-European). Morphologically, the un- element marks negation, reversal, removal, or deprivation, while the base supplies the action, quality, or state being denied or undone. The modern sense is largely compositional, with the historical elements narrowing into a stable English lexical item. In current use it covers not farmed or developed; or lacking refinement. The wider family includes related words such as cultivate, cultivation, and culture.