Whichsoever is valid Scrabble Word

Is whichsoever a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is whichsoever valid Words with Friends?
Words with Friends YES

Definitions for WHICHSOEVER in dictionary:

How to use WHICHSOEVER in a sentence

Find what other words can be done using letters: "whichsoever"
https://scrabble-word.com/finder/whichsoever
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