Where does “AV node” come from?

AV node (English) comes from English node, from Middle English node, from Latin nōdus, from Proto-Indo-European gned-.

AV node (English): A small structure in the heart, located in the Koch's triangle, near the coronary sinus on the interatrial septum

Definitions

  1. A small structure in the heart, located in the Koch's triangle, near the coronary sinus on the interatrial septum

Ancestry of “AV node”, step by step

AV node traces back through two separate lines of ancestry.

via English node

StepLanguageWordMeaning
1EnglishnodeA knot, knob, protuberance or swelling; The point...
2Middle Englishnodelump, swelling; knot, tie
3Latinnōdusa knot (in rope)
4Proto-Indo-Europeangned-—

via English AV

StepLanguageWordMeaning
1EnglishAVInitialism of alternative vote; Initialism of...
2Hebrewאָבchief; father; father; ancestor, forefather
3Akkadian𒉈Ab, fifth month of the year; fire
4Sumerian𒉈to bring, carry; to burn; fire
Every word from Proto-Indo-European gned- →Every word from Latin nōdus →Every word from Middle English node →