tāina
1. (noun) younger brothers (of a male), younger sisters (of a female), cousins (of same gender from a more junior branch of the family).
Ki te whakaae ngā tāina me tō rātou tuahine me ō rātou mātua me ngā hapū, me ngā iwi o te whaea, o te pāpā rānei, ka noho ēnei karanga ki runga ki a Pape he ariki mātāmua ia nō ēnā hapū me ēnā uri (JPS 1909:90). / If his younger brothers, their sister, their parents, and the hapū and iwi of the mother or father consent, he is made first-born ariki of those hapū and descendants.
See also tēina