quatr-, quart-

(Latin: fourth, four)

quartic
1. Referring to or relating to the fourth degree.
2. Any fourth-degree algebraic expression.
quartigravida
A woman who is pregnant for the fourth time.
quartile
quartipara
quarto
A shortened form of Latin in quarto, "in a fourth"; that is, of a sheet of paper, applied to a size of paper, and to a size of a printed volume.

Paper is in quarto when a whole single sheet is folded twice so as to form four leaves; a book is technically termed of "quarto" size when made up of sheets folded twice.

quat.
Used in prescriptions meaning "four".
quatercentenary
quaternate
quaternion
quaternion
quaternity
quatorzain
quatrain
quatre
quatrefoil

Cross references of word families that are related, partially or totally, to: "four, fourth": quadri-; tessara-; tetra-.