Proto-CChadic: *ʔarV-
Meaning: 'hippopotamus'
Kusseri: arẹ 'hippopotamus' Bla. Eleph., 204 (apud Sölken 1967, 242); comp. with other Ch. forms in n-; see, on the other hand, arwi 'elephant' Porkh., 35, where -w- may, or may not, reflect *-f- and belong to Kotoko *ʔarf- (see 130)