 This usage originated in the orthographies created by Christian missionaries to transcribe these languages.Later, the practice was continued by Americanist anthropologists and linguists who still, to the present day, follow this convention in phonetic transcription (see Americanist phonetic notation).The ogonek is also used to indicate a nasalized vowel in Polish, academic transliteration of Old Church Slavonic, Navajo, Western Apache, Chiricahua, Tłįch Yatiì, Slavey, Dëne Sųłiné and Elfdalian.