ARCHAISM

Yes, ARCHAISM is a Scrabble word!

Letter values in Scrabble US: A 1, R 1, C 3, H 4, A 1, I 1, S 1, M 3.A 1 · R 1 · C 3 · H 4 · A 1 · I 1 · S 1 · M 3

Is it a valid word?

• Scrabble US: valid, 15 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 15 points
• Scrabble UK: valid, 15 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 15 points
• Words with Friends: valid, 16 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 16 points