Wireless comes from wire + -less ('without'); wire is from Old English wīr ('metal thread'), from Proto-Germanic *wīraz, ultimately from Proto-Indo-European *weh₁- ('to turn, twist'). The 'radio' sense dates from c. 1900. In current use it is an adjective and noun meaning "operating without connecting wires, or (chiefly British) a radio". That sense is explained by the older material without requiring a speculative semantic step: the inherited or borrowed base supplies the field of meaning, while the English formation fixes its modern role. The suffix -less marks lack, absence, or deprivation. The surface form is compositional: its joined elements remain visible in the modern word. The historical chain includes Old English wīr and Proto-Indo-European *weh₁-. Related English forms include wire. As a result, the modern word is best read as a negative, privative, or reversative formation built on a historically older base.