Issue #21092: Merge from 3.4.
diff --git a/Modules/clinic/cmathmodule.c.h b/Modules/clinic/cmathmodule.c.h
index 7d6e04b..83de518 100644
--- a/Modules/clinic/cmathmodule.c.h
+++ b/Modules/clinic/cmathmodule.c.h
@@ -49,7 +49,7 @@
"acosh($module, z, /)\n"
"--\n"
"\n"
-"Return the hyperbolic arccosine of z.");
+"Return the inverse hyperbolic cosine of z.");
#define CMATH_ACOSH_METHODDEF \
{"acosh", (PyCFunction)cmath_acosh, METH_VARARGS, cmath_acosh__doc__},
@@ -135,7 +135,7 @@
"asinh($module, z, /)\n"
"--\n"
"\n"
-"Return the hyperbolic arc sine of z.");
+"Return the inverse hyperbolic sine of z.");
#define CMATH_ASINH_METHODDEF \
{"asinh", (PyCFunction)cmath_asinh, METH_VARARGS, cmath_asinh__doc__},
@@ -221,7 +221,7 @@
"atanh($module, z, /)\n"
"--\n"
"\n"
-"Return the hyperbolic arc tangent of z.");
+"Return the inverse hyperbolic tangent of z.");
#define CMATH_ATANH_METHODDEF \
{"atanh", (PyCFunction)cmath_atanh, METH_VARARGS, cmath_atanh__doc__},