diff --git a/spell/en.utf-8.add b/spell/en.utf-8.add
index c979587..5289f68 100644
--- a/spell/en.utf-8.add
+++ b/spell/en.utf-8.add
@@ -165,3 +165,7 @@ Cortex-M0+
 Arduino
 Msps
 DMA
+CORDIC
+SMA
+XORs
+PIOs
diff --git a/spell/en.utf-8.add.spl b/spell/en.utf-8.add.spl
index c5b37e5..ef49233 100644
Binary files a/spell/en.utf-8.add.spl and b/spell/en.utf-8.add.spl differ