inter-sum, fŭi, esse (interfŭtūrus, Cic. Div. in Caecil. 11, 35; in tmesi: interque esse desiderat pugnis, Arn. 7, 255), v. n., to be between, lie between (class.; syn. interjaceo).
I In gen.
A Of space: quas (segetes) inter et castra unus omnino collis intererat, Caes. B. G. 6, 35: ut Tiberis inter eos et pons interesset, Cic. Cat. 3, 2: via interest perangusta, Liv. 22, 4: morari victoriam rati, quod interesset amnis, id. 21, 5: quod interest spatii, Plin. 6, 9, 10, § 28.—
B Of time: cujus inter primum et sextum consulatum sex et quadraginta anni interfuerunt, elapsed , Cic. de Sen. 17, 60: inter Laviniam et Albam Longam coloniam deductam triginta ferme interfuere anni, Liv. 1, 3; Cic. Leg. 3, 3, 8.—
II Transf.
A To be apart; with abl. of distance (syn. disto): clathros interesse oportet pede, Cato R. R. 4.—
B To be different , to differ : ut inter eos, ne minimum quidem intersit, there is not the slightest difference , Cic. Ac. 2, 17, 52: inter hominem et beluam hoc maxime interest, quod, men differ chiefly from brutes in this , that , etc., id. Off. 1, 4, 11: vide, quantum interfuturum sit inter meam atque tuam accusationem, how great a difference there will be , id. Div. in Caecil. 11, 35: in his rebus nihil omnino interest, there is no difference whatever , id. Ac. 2, 15, 47: hoc pater ac dominus interest, there is this difference , Ter. Ad. 76: tantum id interest, veneritne eo itinere ad urbem, an ab urbe in Campaniam redierit, Liv. 26, 11.— With ab (like differo, rare): negant quidquam a falsis interesse, Cic. Ac. 2, 9, 27; cf.: quod intersit aut differat, aliud ab alio, id. Fin. 3, 7, 25: quod ab eo nihil intersit, etc., id. Ac. 2, 26, 83.—With dat.: ut matrona Intererit Satyris paulum pudibunda protervis, Hor. A. P. 232: quid dimidium dimidiato intersit, Gell. 3, 14, 4.—With gen. (in analogy with the Gr. διαφέρειν τινός): quoniam τὸ νεμεσᾶν interest (= διαφέρει) τοῦ φθονεῖν, i. e. anger differs from envy , Cic. Att. 5, 19 fin. —
C To be present at , take part in , attend; constr. absol. , with dat. or in and abl.
α Absol. : ac si ipse interfuerit, ac praesens viderit, Cic. Inv. 1, 54, 104: interfuisse me memini, Suet. Dom. 12.—
β With dat. rei : consiliis, Cic. Att. 14, 22, 2; 2, 23, 3: crudelitati, id. ib. 9, 6, 7: negotiis, id. Fam. 1, 6: lacrimis patris, Verg. A. 11, 62: ludis, Suet. Tib. 72: caedi, id. Dom. 47: rebus gerendis, Gell. 5, 18, 1: sermoni, id. 11, 7, 1: senatui, Cic. Dom. 11; Suet. Claud. 46: populo Quirini, to be among , live with , Hor. C. 1, 2, 46: rebus divinis, Caes. B. G. 6, 13, 4: proelio, id. ib. 7, 87: bello, Liv. 36, 4: spectaculo, id. 2, 38.— Also, with dat. loci : curiae, Suet. Aug. 38: contubernio patris, Aur. Vict. Caes. 27, 1.—Also, with dat. pers. : sacrificanti interfuit, attended him , Suet. Oth. 6.—
γ With in and abl.: in convivio, Cic. Rosc. Am. 14, 39: in testamento faciendo, id. Clu. 59, 162: voluerunt eos in suis rebus ipsos interesse, id. Verr. 2, 3, 6, § 14: quibus in rebus, Auct. Her. 1, 9.— Also used of time, to live in : quisquis illis temporibus interfuit, Vell. 2, 114, 2: cui tempori Saturninus interfuit, Sulp. Sev. Dial. 3, 3; cf.: ea (ratiocinatio) dicitur interfuisse tum, cum aliquid vitasse aut secutus esse animus videbitur, to have taken place , Cic. Inv. 2, 5, 18.—
D To interest , be of interest to one (very rare as pers. verb ): non quo mea interesset natura loci, Cic. Att. 3, 19, 1 (cf. interest, impers. infra). —
III Esp.: intĕrest , impers. , it makes a difference , interests , concerns , imports; is of interest , importance; constr. with gen. pers. or meā , tuā , suā , and with a subj. or rel. clause , ut or ne , or with ad : ea vos rata habeatis, ne magis reipublicae interest, quam mea, Liv. 26, 31, 10: quanto opere reipublicae communisque salutis intersit, manus hostium distineri, Caes. B. G. 2, 5, 2: semper ille, quantum interesset P. Clodii, se perire, cogitabat, Cic. Mil. 21, 56: quid illius interest, ubi sis? id. Att. 10, 4, 10: quis enim est hodie, cujus intersit istam legem manere? id. Phil. 1, 9: hoc vehementer interest rei publicae, id. Q. Fr. 2, 4, 1: quod ego et mea et rei publicae interesse arbitror, id. Fam. 2, 19 fin. : multum interest rei familiaris tuae, te quam primum venire, id. Fam. 4, 10, 2: tuā et meā maxime interest, te valere, id. ib. 16, 4: id ignorare eos velis, quorum intersit id scire, id. Off. 3, 13, 57.— With ut or ne : illud meā magni interest, te ut videam, Cic. Att. 11, 22, 2: quod ut facias tuā interesse arbitror, id. Fam. 12, 18, 2: vestrā interest, ne imperatorem pessimi faciant, Tac. H. 1, 30: non tam suā quam reipublicae interesse ut salvus esset, Suet. Caes. 86; so, utriusque nostrum magni interest ut te videam, Cic. Fam. 3, 5, 4 B. and K. (dub.).— With gen. pretii : quod meus familiaris tanti suā interesse arbitraretur, Cic. Fam. 13, 10.—With rel. or interrog.-clause : in omnibus novis conjunctionibus interest, qualis primus aditus sit, Cic. Fam. 13, 10, 4: non tam interest, quo animo scribatur, quam quo accipiatur, Caecin. ap. Cic. Fam. 6, 7, 1: neque multum interest, quod nondum per numeros distributi sunt, Plin. Ep. 10, 30, 2; cf. with utrum ... an : quid interfuit, homo audacissime, utrum hoc decerneres, an, etc., what mattered it? Cic. Verr. 2, 3, 61, § 141: nihil interest nunc, an violaverim, etc., Liv. 26, 31.— With ad : ad honorem interesse, Cic. Fam. 16, 1, 1: ad decus et ad laudem civitatis, id. N. D. 1, 4, 7: ad laudem nostram, id. ib. 5, 12, 2: ad beate vivendum, id. Fin. 2, 28, 90.