bʰerdʰ-

“to cut, split, separate”

Widely acceptedcuttingmaterial

Source of English board, German Brett, Latin frendere

Root for cutting/splitting wood, yielding English board and German Brett (board/plank).‌‌‌‍‍‍‌‌‌‍‌‌‍‌‍‌‍‍‌‍‌‌‌‍‍‌‍‍‌‌‌‍

bʰerǵ-s-“to protect by enclosing”bʰerH-“to scrape, bore, perforate”bʰeyd-₂“to split, cleave, bite”bʰreg-mn̥“that which breaks, fragment”deru-“tree, wood, to be firm”dʰeyǵʰ-mn̥-₂“wall, thing built from clay”dʰrew-“to be firm, to be solid”dóru“tree, wood, oak”