diff --git a/nvim/spell/de.utf-8.add b/nvim/spell/de.utf-8.add
index 34f5949..325ada4 100644
--- a/nvim/spell/de.utf-8.add
+++ b/nvim/spell/de.utf-8.add
@@ -1,3 +1,6 @@
 Spektralmethoden
 FFT
 Simpson
+Lagrange
+Quadraturgewichte
+Interpolationspolynom
diff --git a/nvim/spell/de.utf-8.add.spl b/nvim/spell/de.utf-8.add.spl
index 8a3aed9..b98edda 100644
Binary files a/nvim/spell/de.utf-8.add.spl and b/nvim/spell/de.utf-8.add.spl differ