diff --git a/base/latex_symbols.jl b/base/latex_symbols.jl
index c50451890a40e0..33b49b69a6c8c8 100644
--- a/base/latex_symbols.jl
+++ b/base/latex_symbols.jl
@@ -2544,4 +2544,18 @@ const latex_symbols = Dict(
     "\\mtteight" => "𝟾",  # mathematical monospace digit 8
     "\\mttnine" => "𝟿",  # mathematical monospace digit 9
 
+    "\\triangleright" => "▷",  # (large) right triangle, open; z notation range restriction
+    "\\triangleleft" => "◁",  # (large) left triangle, open; z notation domain restriction
+    "\\leftouterjoin" => "⟕",  # left outer join
+    "\\rightouterjoin" => "⟖",  # right outer join
+    "\\fullouterjoin" => "⟗",  # full outer join
+    "\\Join" => "⨝",  # join
+    "\\mathunderbar" => "̲",  # combining low line
+    "\\underleftrightarrow" => "͍",  # underleftrightarrow accent
+    "\\leftwavearrow" => "↜",  # left arrow-wavy
+    "\\rightwavearrow" => "↝",  # right arrow-wavy
+    "\\varbarwedge" => "⌅",  # /barwedge b: logical and, bar above [projective (bar over small wedge)]
+    "\\smallblacktriangleright" => "▸",  # right triangle, filled
+    "\\smallblacktriangleleft" => "◂",  # left triangle, filled
+    "\\leftmoon" => "☾",  # last quarter moon
 )