Extensive use of Obhishruti (অভিশ্রুতি, /obʱisrut̪i/, umlaut). E.g. Beng. Koriya (করিয়া, /koria/, meaning - having done) > Beng. Koira (কইর্যা, /koirya/) > Beng. Kore (করে, /kore/).[8]
The change of অ to ও, when অ is the first sound of a word where the অ is followed by ই(ি), ও(ো), ক্ষ or য. E.g. Ati (written অতি, means 'excess') is pronounced as Oti (ওতি, /ot̪i/).
Use of vowel harmony. E.g. Bilati (বিলাতি, /bilat̪i/, meaning - foreign) became Biliti (বিলিতি, /biliti/).[9]
Obhishruti and Opinihiti
Ôbhishruti (অভিশ্রুতি, /obʱisrut̪i/) and Ôpinihiti (অপিনিহিতি, /opinihit̪i/, epenthesis) are two phonological phenomena that occur in spoken Bengali dialects. Opinihiti refers to the phonological process in which a ই or উ is pronounced before it occurs in the word. Obhishruti is the sound change in which this shifted ই or উ becomes removed and changes the preceding vowel. Observe the example above : Koriya (করিয়া, /koria/) > Koirya (কইর্যা, /koira/) > Kore (করে, /kore/). First Opinihiti changes Koriya to Koirya (notice how the I changes position.), then Obhishruti changes Koirya (কইর্যা) to Kore (করে).[10]
References
^India, Linguistic Survey of (1903). Linguistic Survey of India. Office of the superintendent of government printing, India. pp. 17–19.
^Bandyopadhyay, Anita (2001). "Problems of Phonetic Transcription in Bengali". Praci-Bhasha-Vijnan Indian Journal of Linguistics. 20: 79. OCLC2256120. Archived from the original on 2021-06-10. Retrieved 2020-09-30. by the word standard Bengali pronunciation we normally understand the Bengali language as is spoken in Calcutta and round about the places on the banks of the river Bhagirathi.
^Bangladesh Quarterly. Department of Films & Publications, Government of Bangladesh. 2002. p. 6. Archived from the original on 2022-09-24. Retrieved 2020-09-30.
^Calcutta, Philological Society of (1966). Bulletin. Archived from the original on 2022-09-24. Retrieved 2019-08-16.
^Folk-lore. Indian Publications. 1975. Archived from the original on 2022-09-24. Retrieved 2019-08-16.
^SK Chatterji, The Origin and Development of the Bengali Language, Calcutta University, Calcutta, 1926
^Sunitikumar Chattopadhyay (1939) ভাষা-প্রকাশ বাঙ্গালা ব্যাকরণ, Calcutta University