diff --git a/wp-includes/functions-formatting.php b/wp-includes/functions-formatting.php
index fe9caddaa3..2fce16f4ee 100644
--- a/wp-includes/functions-formatting.php
+++ b/wp-includes/functions-formatting.php
@@ -166,16 +166,76 @@ function remove_accents($string) {
 		chr(195).chr(174) => 'i', chr(195).chr(175) => 'i',
 		chr(195).chr(177) => 'n', chr(195).chr(178) => 'o',
 		chr(195).chr(179) => 'o', chr(195).chr(180) => 'o',
-		chr(195).chr(181) => 'o',	chr(195).chr(182) => 'o',
-		chr(195).chr(182) => 'o',	chr(195).chr(185) => 'u',
-		chr(195).chr(186) => 'u',	chr(195).chr(187) => 'u',
-		chr(195).chr(188) => 'u',	chr(195).chr(189) => 'y',
+		chr(195).chr(181) => 'o', chr(195).chr(182) => 'o',
+		chr(195).chr(182) => 'o', chr(195).chr(185) => 'u',
+		chr(195).chr(186) => 'u', chr(195).chr(187) => 'u',
+		chr(195).chr(188) => 'u', chr(195).chr(189) => 'y',
 		chr(195).chr(191) => 'y',
 		// Decompositions for Latin Extended-A
-		// TODO: Finish me.
-		chr(197).chr(146) => 'OE', chr(197).chr(147) => 'oe',
+		chr(196).chr(128) => 'A', chr(196).chr(129) => 'a',
+		chr(196).chr(130) => 'A', chr(196).chr(131) => 'a',
+		chr(196).chr(132) => 'A', chr(196).chr(133) => 'a',
+		chr(196).chr(134) => 'C', chr(196).chr(134) => 'c',
+		chr(196).chr(136) => 'C', chr(196).chr(137) => 'c',
+		chr(196).chr(138) => 'C', chr(196).chr(139) => 'c',
+		chr(196).chr(140) => 'C', chr(196).chr(141) => 'c',
+		chr(196).chr(142) => 'D', chr(196).chr(143) => 'd',
+		chr(196).chr(144) => 'D', chr(196).chr(145) => 'd',
+		chr(196).chr(146) => 'E', chr(196).chr(147) => 'e',
+		chr(196).chr(148) => 'E', chr(196).chr(149) => 'e',
+		chr(196).chr(150) => 'E', chr(196).chr(151) => 'e',
+		chr(196).chr(152) => 'E', chr(196).chr(153) => 'e',
+		chr(196).chr(154) => 'E', chr(196).chr(155) => 'e',
+		chr(196).chr(156) => 'G', chr(196).chr(157) => 'g',
+		chr(196).chr(158) => 'G', chr(196).chr(159) => 'g',
+		chr(196).chr(160) => 'G', chr(196).chr(161) => 'g',
+		chr(196).chr(162) => 'G', chr(196).chr(163) => 'g',
+		chr(196).chr(164) => 'H', chr(196).chr(165) => 'h',
+		chr(196).chr(166) => 'H', chr(196).chr(167) => 'h',
+		chr(196).chr(168) => 'I', chr(196).chr(169) => 'i',
+		chr(196).chr(170) => 'I', chr(196).chr(171) => 'i',
+		chr(196).chr(172) => 'I', chr(196).chr(173) => 'i',
+		chr(196).chr(174) => 'I', chr(196).chr(175) => 'i',
+		chr(196).chr(176) => 'I', chr(196).chr(177) => 'i',
+		chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij',
+		chr(196).chr(180) => 'J', chr(196).chr(181) => 'j',
+		chr(196).chr(182) => 'K', chr(196).chr(183) => 'k',
+		chr(196).chr(184) => 'k', chr(196).chr(185) => 'L',
+		chr(196).chr(186) => 'l', chr(196).chr(187) => 'L',
+		chr(196).chr(188) => 'l', chr(196).chr(189) => 'L',
+		chr(196).chr(190) => 'l', chr(196).chr(191) => 'L',
+		chr(197).chr(128) => 'l', chr(196).chr(129) => 'L',
+		chr(197).chr(130) => 'l', chr(196).chr(131) => 'N',
+		chr(197).chr(132) => 'n', chr(196).chr(133) => 'N',
+		chr(197).chr(134) => 'n', chr(196).chr(135) => 'N',
+		chr(197).chr(136) => 'n', chr(196).chr(137) => 'N',
+		chr(197).chr(138) => 'n', chr(196).chr(139) => 'N',
+		chr(197).chr(140) => 'O', chr(196).chr(141) => 'o',
+		chr(197).chr(142) => 'O', chr(196).chr(143) => 'o',
+		chr(197).chr(144) => 'O', chr(196).chr(145) => 'o',
+		chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe',
+		chr(197).chr(148) => 'R',chr(197).chr(149) => 'r',
+		chr(197).chr(150) => 'R',chr(197).chr(151) => 'r',
+		chr(197).chr(152) => 'R',chr(197).chr(153) => 'r',
+		chr(197).chr(154) => 'S',chr(197).chr(155) => 's',
+		chr(197).chr(156) => 'S',chr(197).chr(157) => 's',
+		chr(197).chr(158) => 'S',chr(197).chr(159) => 's',
 		chr(197).chr(160) => 'S', chr(197).chr(161) => 's',
-		chr(197).chr(189) => 'Z', chr(197).chr(190) => 'z',
+		chr(197).chr(162) => 'T', chr(197).chr(163) => 't',
+		chr(197).chr(164) => 'T', chr(197).chr(165) => 't',
+		chr(197).chr(166) => 'T', chr(197).chr(167) => 't',
+		chr(197).chr(168) => 'U', chr(197).chr(169) => 'u',
+		chr(197).chr(170) => 'U', chr(197).chr(171) => 'u',
+		chr(197).chr(172) => 'U', chr(197).chr(173) => 'u',
+		chr(197).chr(174) => 'U', chr(197).chr(175) => 'u',
+		chr(197).chr(176) => 'U', chr(197).chr(177) => 'u',
+		chr(197).chr(178) => 'U', chr(197).chr(179) => 'u',
+		chr(197).chr(180) => 'W', chr(197).chr(181) => 'w',
+		chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y',
+		chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z',
+		chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z',
+		chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z',
+		chr(197).chr(190) => 'z', chr(197).chr(191) => 's',
 		// Euro Sign
 		chr(226).chr(130).chr(172) => 'E');