I read somewhere that the prefix be- can be used as a causative and this got me thinking. Does this mean that because means to cause to cause or to make cause?
From OED (the other one):
c.1300, bi cause "by cause," modeled on Fr. par cause. Originally a phrase, often followed by a subordinate clause introduced by that or why. One word from c.1400. As an adverb from late 14c.
The word 'because' originated from 'bi cause' or 'by cause' and not be-cause. So because does not mean to cause to cause.