Appendix:Longest English monosyllable words

This is a list of candidates for longest English word of one syllable, i.e. monosyllables with the most letters. Some candidates are questionable on grounds of spelling, pronunciation, or status as obsolete, dialect, proper noun, or nonce word.

Proper names
Some nine-letter proper names remain monosyllabic when adding a tenth letter and apostrophe to form the possessive:
 * Laugharne's
 * Scoughall's

It is productive in English to convert a proper noun into an eponymous verb or adjective:
 * A 2007–08 promotion in France used the slogan "Do you Schweppes?", implying a past tense Schweppesed (11 letters) for the putative verb.
 * Schwartzed (10 letters) has been used to mean "(re)designed in the style of Martha Schwartz"
 * Schwartzed has also been used to mean "crossed swords with Justice Alan R. Schwartz"
 * Schmertzed (10 letters) has been used to mean "received undue largesse from New York City through the intervention of negotiator Eric J. Schmertz"