Where does “mouthguard” come from?

mouthguard (English) comes from English guard, from Middle English garde, from Old French guarde, from Old French guarder, from Frankish wardēn, from Proto-Germanic wardāną, from Proto-Germanic *warduz, from Proto-Indo-European wēr- — to burn; to cover, heed, notice; squirrel.

mouthguard (English): A device that fits into the mouth over one or...

Definitions

  1. A device that fits into the mouth over one or...

Ancestry of “mouthguard”, step by step

mouthguard traces back through two separate lines of ancestry.

via English guard

StepLanguageWordMeaning
1EnglishguardA person who, or thing that, protects or watches...
2Middle Englishgardeguardianship, safeguarding, covering, authority;...
3Old Frenchguardeprotection; act of protecting; guard; inflection...
4Old Frenchguarderto protect; to guard; to look at
5Frankishwardēnto protect; to guard, protect, watch over; to...
6Proto-Germanicwardānąto guard, protect, watch over
7Proto-Germanic*warduz
8Proto-Indo-Europeanwēr-true
9Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

via English mouth

StepLanguageWordMeaning
1EnglishmouthThe opening of a creature through which food is...
2Middle EnglishmouþAlternative form of mouth
3Old Englishmūþmouth, opening, door, gate
4Proto-West Germanic*munþmouth
5Proto-Germanicmunþazmouth
6Proto-Indo-Europeanmen-to think, mind; spiritual activity; to stay,...
Every word from Proto-Indo-European wer-Every word from Proto-Indo-European wēr-Every word from Proto-Germanic *warduz