narrow: [OE] Narrow comes from a prehistoric Germanic *narwaz, whose only other modern representative is Dutch naar ‘unpleasant, sad’ (although it also occurs in Norva-sund, the Old Norse term for the ‘Straits of Gibraltar’). It is not known for certain where it comes from, but a connection has been suggested with Latin nervus ‘sinew, bowstring’ (source of English nerve) and Old High German snuor ‘string’, which might point back to an ancestral sense ‘tying together tightly’. [narrow etymology, narrow origin, 英语词源]