unction: [14] Unction was borrowed from Latin unctiō, a derivative of unguere ‘anoint’ (source also of English unguent [15]). This was descended from the same prehistoric ancestor as produced Welsh ymenyn ‘butter’. Unctuous [14], from the medieval Latin derivative unctuōsus, originally meant literally ‘oily, greasy’, but has since moved into more metaphorical areas. => unctuous, unguent
