inasmuch as

conjunction2

1. •
   To the extent that; insofar as.

   • You will improve, but only inasmuch as you practise.
2. •
   Because of the fact that; since.

   • This employee was engaged to direct asphalt plants and inasmuch as the work for which he had been employed was completed, he was surplused and his return travel was approved […] — 1952