tetra-

prefix

Etymology: Etymology tree Proto-Indo-European *kʷetwóres Proto-Hellenic *kʷétwores Ancient Greek τέσσᾰρες (téssăres) Ancient Greek τετρᾰ- (tetră-)bor. English tetra- Borrowed from Ancient Greek τετρα- (tetra-), combining form of Ancient Greek τέτταρες (téttares), from τέσσαρες (téssares, “four”). Doublet of quadri-.

1. Four.

   “Which is how Kit first heard about the T.W.I.T. back in London, and of the ghostly neo-Pythagorean cult of tetralatry or worship of the number four, currently the rage in certain European circles”