Je was op zoek naar: roller blade (Engels - Maori)

with the blade
ki te tau o taku ate

then let mine arm fall from my shoulder blade, and mine arm be broken from the bone.
na kia marere atu toku pokohiwi i roto i te peke, kia whati te takakau o toku ringa

but when the blade was sprung up, and brought forth fruit, then appeared the tares also.
a, no ka pihi ake te rau, ka hua, katahi ka kitea hoki nga taru

for the earth bringeth forth fruit of herself; first the blade, then the ear, after that the full corn in the ear.
e hua ana hoki te whenua i tona kaha ake ano; ko te rau ki mua, ko reira te puku, muri iho ko te witi pakari i roto i te puku

and the haft also went in after the blade; and the fat closed upon the blade, so that he could not draw the dagger out of his belly; and the dirt came out.
a ngoto tahi atu ana te kakau me te mata, a tutakina iho te mata e te ngako, kihai i unuhia mai te hoari i roto i tona kopu, a puta atu ana ki muri

you will not be able to use the blades
kaore ano kia whakamahia e koe nga taara mai i a