Agoi language

Agoi
Ibami
Native to	Nigeria
Region	Cross River State
Native speakers	(12,000 cited 1989)[1]
Language family	Niger–Congo? Atlantic–Congo Benue–Congo Cross River Upper Cross Agoi languages Agoi
Language codes
ISO 639-3	ibm
Glottolog	agoi1246

Agoi, Robambami, or Ibami, is an Upper Cross River language spoken in Cross River State of Nigeria.

Phonology

Yul-Ifode lists the following vowel phonemes:

Agoi vowels^[2]

	Front	Near-front	Central	Near-back	Back
Close	i i:				u u:
Close-mid	e e:	ɪ		ʊ	o o:
Mid			ə
Open-mid	ɛ ɛː				ɔ ɔ:
Open	a a:

However, she notes that the use of phonemes /ɪ/ and /ʊ/ is in decline, as they are often in free variation with /i/ and /u/.

References

1. Agoi at Ethnologue (25th ed., 2022)
2. Yul-Ifode, Shirley. 2003. Vowel harmony and vowel merger in Agoi. Studies in African linguistics 32. 1–16.