What is "bonakis"

Bonakis (d. 609) was a Byzantine military commander, active in Cyrenaica ( Libya) and Egypt. His name is occasionally rendered "Konakis". He joined the revolt of Heraclius against the emperor Phocas (r. 602-610). He was killed in the subsequent conflict. The main source about him is John of Nikiû, the relevant text only surviving in Ethiopian translation.