Where does “moustachio’d” come from?

moustachio’d (English) comes from English mustachio, from Neapolitan mustaccio, from Medieval Latin mustācium.

Ancestry of “moustachio’d”, step by step

StepLanguageWordMeaning
1EnglishmustachioA mustache, especially a large or lush one; To...
2Neapolitanmustaccio—
3Medieval Latinmustācium—
Every word from Medieval Latin mustācium →Every word from Neapolitan mustaccio →Every word from English mustachio →