alter tera, terum, gen. terīus or terius, dat. alterī (f rarely alterae), pronom adj.
2 AL-, one, another, the one, the other (of two): necesse est sit alterum de duobus: altera ex duabus legionibus, Cs.: alter consulum, L.: in alterā parte fluminis legatum reliquit, on the other side, Cs.: ut consules alter ambove cognoscerent, one or both: absente consulum altero ambobusve, L. — Alter ... alter, the one ... the other, the former ... the latter: curemus aequam uterque partem; ut alterum, ego item alterum, T.: quorum alter exercitum perdidit, alter vendidit: nec ad vivos pertineat, nec ad mortuos; alteri nulli sunt, alteros non attinget: quorum alteri adiuvabant, alteri, etc., Cs.: qui noxii ambo, alter in alterum causam conferant, L.—Unus ... alter, one ... the other: Ph. Una iniuria est tecum ... altera est tecum, T.: uni epistulae respondi, venio ad alteram. — Opp. to other distributive words: alter gladiator habetur, hic autem, etc.: lateris alter angulus ad orientem solem, inferior ad, etc., Cs.: ne alteruter alterum praeoccuparet, N.: uterque suo studio delectatus contempsit alterum: neutrum eorum contra alterum iuvare, Cs.—Esp., as a numeral, the second, next (cf. secundus): primo die ... alter dies ... tertius dies: proximo, altero, tertio, reliquis consecutis diebus: sive iterum Sulla sive alter Marius: alteris Te mensis adhibet deum, i. e. at the dessert, H. — So, alterā die, the next day: altero die quam, on the next day after, L. — With praepp.: qui tum regnabat alter post Alexandream conditam, next after: Fortunate puer, tu nunc eris alter ab illo, the next after him, V.—In compound numbers: litteras altero vicensimo die reddidit, on the twenty-second day.—Of a number collectively: hos libros alteros quinque mittemus, a second series of five: Aurea mala decem misi; cras altera (sc. decem) mittam, V. — In the phrase, unus et alter, unus atque alter, unus alterque, the one and the other.—Usu. of an indef. number, one and another, a couple, one or two: Unus et item alter, T.: unum et alterum diem desiderari: versus paulo concinnior unus et alter, H.—Rarely of a definite number, two: unus et alter dies intercesserat.—Alterum tantum, as much more, as much again, twice as much: altero tanto longior, N.: numero tantum alterum adiecit, L. — Of quality or character, a second, another, i. e. very like: Verres, alter Orcus: alter ego: amicus est tamquam alter idem, a second self.—The one of two, either of two (for alteruter): non uterque sed alter: sine alteris vestrum vivere, L. — Meton., another (for alius): victis non ad alterius praescriptum imperare, Cs.: si nullius alterius nos pudet, nobody else, L.—Hence, a neighbor, fellow-creature: ex incommodis Alterius sua ut conparent commoda, T.: nihil alterius causā facere.—The other, the opposite: alterius factionis principes, the leaders of the opposite party, N.—Different, changed: quotiens et specula videris alterum, H.