http://www.constellationsofwords.com/Constellations/Corvus.html

“Corvus is from Latin corvus, Greek korax, related to Swedish korp, Old High German hraban, Old Norse hrafn. The words Corvus and Raven come from the Indo-European root *ker — ‘Echoic root, base of various derivatives indicating loud noises or birds’. Derivatives: ring (from Old English hringan, to resound, clink), retch (from Old English hraecan, to clear the throat, relating to the deep guttural croak of the raven), raven (from Old English hraefn, raven, from Germanic *hrabnaz, raven), corbel, corbina, cormorant (literally, raven of the sea), corvine, Corvus, coracoid (korakias, chough), screech (from Old Norse skraekja, to shreik, from Germanic *skrekjan). [Pokorny 1. ker- 567. Watkins] The names Ingram (from Teutonic angil, ‘angel’, and hram, hramn, is a collateral form of hraban, ‘raven’), Bertram (from beraht, ‘bright’, and hram, hramn, raven). Klein supplies the Indian word kos, ‘the distance within which a man’s shout can be heard’. A corbel is a likely place for a crow to perch, a bracket projecting from the face of a wall and generally used to support a cornice or arch. Ravens are found at the top of the highest peaks.”

— Anne Wright, Constellations of Words