quadri-

• quadr-
• quadro-
• quadru-

From Latin quattuor (“four”).

• (UK) IPA^(key): /kwɒdrɪ/
• (US) IPA^(key): /kwɑdrə/

quadri-

1. Four.

   Synonym: tetra- (Greek-derived counterpart)

• quadrangle
• quadriad
• quadriceps
• quadrifoil
• quadrifoliate
• quadrilateral
• quadriliteral
• quadruped

Borrowed from Latin quadri- (“four”).

• IPA^(key): /kwa.dʁi/, /ka.dʁi/

quadri-

1. quadri-

• “quadri-”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

quadri-

1. alternative form of quadr-

• quadru- (before a labial consonant, usually p)
• quadr- (before a vowel)

From Proto-Italic *kʷatru-, from Proto-Indo-European *kʷetwr̥-, with -twr- developing into -dr-; compare the full form quattuor, ultimately from *kʷetwóres. Analogous to Ancient Greek τετρα- (tetra-) vs. τέτταρες (téttares, “four”).^[1]

quadri-

1. four, quadri-