tīmatanga - beginning (tīmata + nominal suffix -nga)
timatanga, n. Beginning. I te tau timatanga, kotahi rau (T. 185).
Williams Dictionary
Mai i te tau 1985 tae noa ki te tīmatanga o tēnei tau, i Whangārei rātou e noho anaThey were living in Whangārei from 1985 until the beginning of this year
Hei tino tauira hei tāna, "i roto i te Kowheori i ngā marama e ono, e hia kē nei ngā kupu mō te mate Kowheori i te tīmatanga rā."A prime example "is when Covid-19 first hit, in the first six months there were so many different Māori names used for the word Covid".