diff --git a/library/help/markup.factor b/library/help/markup.factor
index a5b3477490..1ecb650692 100644
--- a/library/help/markup.factor
+++ b/library/help/markup.factor
@@ -183,4 +183,5 @@ DEFER: help
     "Calling this word directly is not necessary in most cases. Higher-level words call it automatically." print-element ;
 
 : $values-x/y
+    drop
     { { "x" "a complex number" } { "y" "a complex number" } } $values ;
diff --git a/library/math/arc-trig-hyp.facts b/library/math/arc-trig-hyp.facts
index 975bd00240..bbc2c3e229 100644
--- a/library/math/arc-trig-hyp.facts
+++ b/library/math/arc-trig-hyp.facts
@@ -28,30 +28,30 @@ HELP: acoth "( x -- y )"
 $values-x/y
 { $description "Inverse hyperbolic cotangent." } ;
 
-HELP: acosh "( x -- y )"
+HELP: acos "( x -- y )"
 $values-x/y
 { $description "Inverse trigonometric cosine." } ;
 
-HELP: asech "( x -- y )"
+HELP: asec "( x -- y )"
 $values-x/y
 { $description "Inverse trigonometric secant." } ;
 
-HELP: asinh "( x -- y )"
+HELP: asin "( x -- y )"
 $values-x/y
 { $description "Inverse trigonometric sine." } ;
 
-HELP: asinh "( x -- y )"
+HELP: asin "( x -- y )"
 $values-x/y
 { $description "Inverse trigonometric sine." } ;
 
-HELP: acosech "( x -- y )"
+HELP: acosec "( x -- y )"
 $values-x/y
 { $description "Inverse trigonometric cosecant." } ;
 
-HELP: atanh "( x -- y )"
+HELP: atan "( x -- y )"
 $values-x/y
 { $description "Inverse trigonometric tangent." } ;
 
-HELP: acoth "( x -- y )"
+HELP: acot "( x -- y )"
 $values-x/y
 { $description "Inverse trigonometric cotangent." } ;