Where does “wisdom tooth” come from?

wisdom tooth (English) comes from English wisdom, from Middle English wisdom, from Old English wīsdōm, from Proto-Germanic wīsadōmaz, from Proto-Germanic wīsaz, from Proto-Indo-European weydstos, from Proto-Indo-European weyd- — to see.

wisdom tooth (English): One of the four (one upper and one lower on each side) rearmost molars in humans, which typically develop between ages 18-24

Definitions

  1. One of the four (one upper and one lower on each side) rearmost molars in humans, which typically develop between ages 18-24

Ancestry of “wisdom tooth”, step by step

wisdom tooth traces back through 3 separate lines of ancestry.

via English wisdom

StepLanguageWordMeaning
1EnglishwisdomAn element of personal character that enables one...
2Middle Englishwisdomwisdom
3Old Englishwīsdōmwisdom
4Proto-Germanicwīsadōmazwise judgement, wisdom
5Proto-Germanicwīsazwise, knowledgeable
6Proto-Indo-Europeanweydstosknowledgeable
7Proto-Indo-Europeanweyd-to see

via English tooth

StepLanguageWordMeaning
1EnglishtoothA hard, calcareous structure present in the mouth...
2Middle EnglishtothAlternative form of tothe
3Old Englishtōþtooth
4Proto-Germanictanþstooth
5Proto-Indo-Europeanh₃dóntstooth
6Proto-Indo-Europeanh₁ed-to eat

via Latin dens sapientiae

StepLanguageWordMeaning
1Latindens sapientiae
Every word from Proto-Indo-European weyd-Every word from Proto-Indo-European weydstosEvery word from Proto-Germanic wīsaz