From Wiktionary, the free dictionary
Compare ㄴ께 (-nkke), although this form has also spread outside of Chungcheong and Jeolla.
니께 • (-nikke)
- (Jeolla dialect, Chungcheong, less common in Seoul, Hwanghae, Pyongan) Post-vowel and post-ㄹ allomorphic form of 으니께 (-eunikke).
1980 June 22, 이재득 [ijaedeuk], “금봉이와 은금이 [geumbong'iwa eun'geumi]”, in 한국구비문학대계 [han'gukgubimunhakdaegye][1], 충청남도 당진시 [chungcheongnamdo dangjinsi]:금벵이가 가만히 생각허니께 그 약속이 다 어그러진 것 같어.- Geumbeng'i-ga gamanhi saenggakheonikke geu yaksog-i da eogeureojin geot gateo.
- As the larve thought quietly, [he realised that] the promise had seemed to have been ruined
1979 August 13, 김의호 [gimuiho], “구렁이 색씨 [gureong'i saekssi]”, in 한국구비문학대계 [han'gukgubimunhakdaegye][2], 경기도 여주시 대신면 [gyeonggido yeojusi daesinmyeon]:급해니께... 그집이, 그냥 환하게 이러던 집이 캄캄하단 말야, 담을 뛰어넘어 가니께...- Geuphaenikke... Geujib-i, geunyang hwanhage ireodeon jib-i kamkamhadan mar-ya, dam-eul ttwieoneomeo ganikke...
- Because they were urgent, they jumped into a house which, although once bright, was now dark.
