offsplit
A splitting off or breaking away from; a secession; divergence.
If, in accordance with modern view of the phenomenology of religion, we want to look upon Baal as an offsplit of El, we are for several reasons prompted to regard this offsplit, at first hand, [...]
Where it comes from
From off- + split. Cognate with Dutch afsplitten (“to split off”), German Low German ofsplieten, ofsplitten (“to split off”), German abspalten (“to split off, secede”).
Adapted from the Wiktionary entry offsplit (CC BY-SA 4.0).