From Old Irish bríg, from Proto-Celtic *brīgo- (“strength”) (compare Welsh bri (“fame, distinction”)), from Proto-Indo-European *gʷrī-g-, the suffixed extended form of Proto-Indo-European *gʷerə- (“heavy”).
- meaning, sense
- substance, essence, gist, point, drift (of argument etc)
- pith, sap, juice (of plants, fruit etc)
- energy, strength
- significance, purport, moment