mua
1. (location) the front, in front of, before, ahead - a location word, or locative, which follows immediately after particles such as ki, i, hei and kei or is preceded by a when used as the subject of the sentence.
(Te Kākano Textbook (Ed. 2): 15-16; Te Pihinga Textbook (Ed. 2): 24;)
Kei mua te upoko o te kau i te whiore. / The cow's head is in front of its tail.
2. (location) the past, former, the time before, formerly, first - often modified by mai, ake or atu.
(Te Kākano Textbook (Ed. 2): 121;)
I ngā rā o mua, haere ai ngā tīpuna ki reira. / In former times, the ancestors went there.