Unbeloved is from un- ('not') + beloved, past participle of the archaic belove, from be- (intensive prefix) + love, from Old English lufu ('love'), from Proto-Germanic *lubo, from Proto-Indo-European *leubh- ('to care, desire, love'). Important recorded forms include un- (Old English), lufu (Old English), and *leubh- (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 loved or cherished. The wider family includes related words such as beloved, love, belove, and lover.