“three” in Latin

tres, tria: trini, trinae, trina (three together; also = three at once, usually with substantives which have no sing., but also otherwise): terni, -ae, -a (every three, distributively; also = three at once). A space of three days, triduum: every three days, ternis diebus; tertio quoque die (on every third day): after three days, post ejus diei tertium diem: three years old, trimus, trimulus (☞ never = lasting three years); tres annos natus (three years old; of persons); trium annorum (that lasts three years; also three years old); triennis (that lasts three years): a space of three years, triennium: three pounds, trepondo: in three parts [Vid: THREEFOLD]: three parts (of a whole), dodrans: consisting of three, ternarius: three words with you, te tribus verbis volo (comedy): to say anything in three words, aliquid in tribus verbis dicere: there are three of us, nos sumus tres: three and a half, tres et semis; tres et dimidium; dimidium super tres (☞ not sesquitertius, which denotes the relation of 3 to 4).