diff --git a/configure.ac b/configure.ac
index 906f63cbb..48705c967 100644
--- a/configure.ac
+++ b/configure.ac
@@ -21,7 +21,7 @@ AC_PATH_TOOL(STRIP, strip)
 
 # Save definition of AC_PROG_CC because AM_PROG_CC_C_O in automake<=1.13 will
 # redefine AC_PROG_CC to exit with an error, which avoids the user calling it
-# accidently and screwing up the effect of AM_PROG_CC_C_O. However, we'll need
+# accidentally and screwing up the effect of AM_PROG_CC_C_O. However, we'll need
 # AC_PROG_CC later on in AX_PROG_CC_FOR_BUILD, where its usage is fine, and
 # we'll carefully make sure not to call AC_PROG_CC anywhere else.
 m4_copy([AC_PROG_CC], [saved_AC_PROG_CC])
diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h
index 87ccc733d..5d94091e6 100644
--- a/src/ecmult_impl.h
+++ b/src/ecmult_impl.h
@@ -220,7 +220,7 @@ struct secp256k1_strauss_state {
 static void secp256k1_ecmult_strauss_wnaf(const struct secp256k1_strauss_state *state, secp256k1_gej *r, size_t num, const secp256k1_gej *a, const secp256k1_scalar *na, const secp256k1_scalar *ng) {
     secp256k1_ge tmpa;
     secp256k1_fe Z;
-    /* Splitted G factors. */
+    /* Split G factors. */
     secp256k1_scalar ng_1, ng_128;
     int wnaf_ng_1[129];
     int bits_ng_1 = 0;
diff --git a/src/scalar_impl.h b/src/scalar_impl.h
index e12447477..1b690e394 100644
--- a/src/scalar_impl.h
+++ b/src/scalar_impl.h
@@ -74,7 +74,7 @@ static void secp256k1_scalar_split_lambda_verify(const secp256k1_scalar *r1, con
  * Both lambda and beta are primitive cube roots of unity.  That is lamba^3 == 1 mod n and
  * beta^3 == 1 mod p, where n is the curve order and p is the field order.
  *
- * Futhermore, because (X^3 - 1) = (X - 1)(X^2 + X + 1), the primitive cube roots of unity are
+ * Furthermore, because (X^3 - 1) = (X - 1)(X^2 + X + 1), the primitive cube roots of unity are
  * roots of X^2 + X + 1.  Therefore lambda^2 + lamba == -1 mod n and beta^2 + beta == -1 mod p.
  * (The other primitive cube roots of unity are lambda^2 and beta^2 respectively.)
  *
diff --git a/src/tests.c b/src/tests.c
index ebeef510f..6027ebc07 100644
--- a/src/tests.c
+++ b/src/tests.c
@@ -3225,7 +3225,7 @@ void test_intialized_inf(void) {
     secp256k1_gej pj, npj, infj1, infj2, infj3;
     secp256k1_fe zinv;
 
-    /* Test that adding P+(-P) results in a fully initalized infinity*/
+    /* Test that adding P+(-P) results in a fully initialized infinity*/
     random_group_element_test(&p);
     secp256k1_gej_set_ge(&pj, &p);
     secp256k1_gej_neg(&npj, &pj);