Grufted is valid Scrabble Word

Is grufted a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words YES
Is grufted valid Words with Friends?
Words with Friends NO

Definitions for GRUFTED in dictionary:

Words related to GRUFTED

dirty9
Find what other words can be done using letters: "grufted"
https://scrabble-word.com/finder/grufted
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