roanga - length of time (roa + nominal suffix -nga)
roanga, n. 1. Delay, passage of time. Me te turehutanga kanohi nei ano te roanga, ka hoki mai to tatou waka ki uta (T. 21).
2. Prolongation, continuation. Taria atu he roanga.
Williams Dictionary
Tēra pea tētahi e mōhio ana ki te roanga ake o te kōrero nei.Perhaps there's someone who knows the rest of this story.
