From Wiktionary, the free dictionary
onón:ta’ (“hill, mountain”) + -ke (“at”) + -haka’ (forms names of nationalities)
Ononta’kehá:ka’
- The Onondaga people
- David R. Maracle (1990) Iontewennaweienhstáhkwaʼ - Mohawk Language Dictionary, Mika Publishing Company, page 271