kāpātau
1. if, but if - a conjunction.
He toki ōnewa, hāpūpū mārire; kāpātau he mata toki pounamu, e tū te tātai o te whakairo (W 1971:36). / An adze of granite becomes quite blunt; but with a cutting edge of greenstone the carving is adorned. (A whakataukī suggesting that a talented person with the right tools for the job will succeed where a person lacking the appropriate skills and tools will not.)