inasmuch as
inasmuch as {conj.}
1. See: INSOFAR AS.
2. also for as much as {formal}
Because; for the reason that; since.
Inasmuch as this is your team, you have the right to choose your own captain.
Inasmuch as the waves are high, I shall not go out in the boat.
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Source: A Dictionary of American Idioms