orthoepistic
/ˌɔːθəʊɛˈpɪstɪk/ /ˌɔːθəʊɪˈpɪstɪk/Linguistics
adjective
Of or relating to orthoepists; devised or studied by orthoepists.
Origin
Mid 19th century; earliest use found in Alexander Ellis (1814–1890), phonetician and mathematician. From orthoepist + -ic.