Proto-WChadic: *diHʷVn-
Meaning: 'fat' 1, 'oil' 2 , 'plump, thick' 3
Sura: ḍɔ́ŋ 1 , 3 [ JgS] fett ,dick (von Personnen)'
Kofyar: ḍuwan 3 [TAS:98]
Polchi: ḍiin 2 [Cs N 201]
Notes: cf. that this root is not realated to Mupun-Goemay *ḍwm 'big, to swell', as suggested in [TAS:98]