Yes, NEGRITUDE is a Scrabble word!

Letter values in Scrabble US: N 1, E 1, G 2, R 1, I 1, T 1, U 1, D 2, E 1.

Is it a valid word?

NEGRITUDE is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

an ideological position that holds Black culture to be independent and valid on its own terms; an affirmation of the African cultural heritage