Sacud­ir and Per­cus­sion, Dis­cus­sion, Con­cus­sion

Sacud­ir, Span­ish for “to shake” comes from the Latin for the same, quatere.

From that same root, we get a bunch of Eng­lish -cus­sion words, in­clud­ing:

• Dis­cus­sion — that’s when you shake up what you’re talk­ing about!
• Con­cus­sion — that’s when you shake some­one so hard, they get hurt!
• Per­cus­sion — that’s when you shake the drums a lot!

You can see the s‑c in re­verse in the Span­ish sacud­ir and the -cus­sion words.