bridge (n.1)youdaoicibaDictYouDict[bridge 词源字典]
"causeway over a ravine or river," Old English brycge, from Proto-Germanic *brugjo (cognates: Old Saxon bruggia, Old Norse bryggja, Old Frisian brigge, Dutch brug, Old High German brucca, German Brücke), from PIE root *bhru "log, beam," hence "wooden causeway" (cognates: Gaulish briva "bridge," Old Church Slavonic bruvuno "beam," Serbian brv "footbridge"). For vowel evolution, see bury. Meaning "bony upper part of the nose" is from early 15c.; of stringed instruments from late 14c. The bridge of a ship (by 1854) originally was a "narrow raised platform athwart the ship whence the Captain issues his orders" [Sir Geoffrey Callender, "Sea Passages"].
Bridge in steam-vessels is the connection between the paddle-boxes, from which the officer in charge directs the motion of the vessel. [Smythe, "The Sailor's Word-Book," 1867]
[bridge etymology, bridge origin, 英语词源]