--- /dev/null
+var baseToString = require('../internal/baseToString'),
+ deburrLetter = require('../internal/deburrLetter');
+
+/** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */
+var reComboMark = /[\u0300-\u036f\ufe20-\ufe23]/g;
+
+/** Used to match latin-1 supplementary letters (excluding mathematical operators). */
+var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;
+
+/**
+ * Deburrs `string` by converting [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
+ * to basic latin letters and removing [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
+ *
+ * @static
+ * @memberOf _
+ * @category String
+ * @param {string} [string=''] The string to deburr.
+ * @returns {string} Returns the deburred string.
+ * @example
+ *
+ * _.deburr('déjà vu');
+ * // => 'deja vu'
+ */
+function deburr(string) {
+ string = baseToString(string);
+ return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, '');
+}
+
+module.exports = deburr;