Lewis Short
(adverb) : tandem, tam and the demonstr. termination dem; prop. just so far; hence, transf. to time, after so long, after a long time, implying the end of long delay or expectation
* At length, at last, in the end, finally (cf.: denique, postremo).
* Lit.
* In gen.
* Transf., for denique, finally, to mark the final clause of a series (very rare), Quint. 12, 1, 25.
* In partic., in interrogative clauses, pray, pray now, now, then: quid tandem, what in the world, etc. (very freq. in class. prose): quid tandem admisi in me, ut loqui non audeam?Plaut. Men. 5, 1, 12: quid tandem agebatis, Cic. Rep. 1, 13, 19: quae res tandem inciderat?id. ib. 1, 11, 17: quod genus tandem est istud ostentationis et gloriae?id. Roab. Post. 14, 38; id. Leg. 1, 1, 1; cf.: quonam tandem modo?id. Tusc. 3, 4, 8; id. Part. Or. 4, 12; id. Fin. 2, 19, 60: (id) quo tandem animo tibi ferendum putas?id. Cat. 1, 7, 16: hoc, per ipsos deos, quale tandem est?id. N. D. 1, 38, 105: quanto tandem illum moerore afflictum esse putatis?id. Cat. 2, 1, 2: quorsum tandem? aut cur ista quaeris?id. Leg. 1, 1, 4: quousque tandem abutere, Catilina, patientiā nostrā?id. Cat. 1, 1, 1: quae quousque tandem patiemini?Sall. C. 20, 9; Cic. Caecin. 17, 48; so, utrum tandem ... an,id. Fl. 10, 24: scis Quo tandem pacto deceat, etc.,Hor. Ep. 1, 17, 2: ain' tandem ita esse ut dicis?Plaut. Aul. 2, 4, 19; so, ain' tandem?id. Trin. 4, 2, 145; id. Truc. 2, 7, 47; Ter. And. 5, 3, 4; id. Phorm. 2, 3, 26; Cic. Rep. 1, 15, 23; id. Att. 9, 21, 1: itane aiebat tandem?Plaut. Mil. 1, 66; so, itane tandem?id. Trin. 3, 2, 16; Ter. And. 3, 2, 12; id. Heaut. 5, 2, 1; id. Phorm. 2, 1, 1; 3, 2, 42.
* By jam: jam tandem aedes igitur,Plaut. Mil. 4, 2, 39 Brix; cf. Cic. Agr. 2, 37, 103: jam tandem Italiae fugientis prendimus oras,Verg. A. 6, 61; so id. ib. 10, 890; 12, 497 (cf.: jam denique,id. ib. 2, 70.
* By aliquando: aliquando tandem huc animum ut adjungas tuum,Ter. Hec. 4, 4, 61; cf.: tandem aliquando L. Catilinam ... ex urbe ejecimus,Cic. Cat. 2, 1, 1; so, tandem aliquando,id. ib. 1, 7, 18; id. Quint. 30, 94; id. Fam. 11, 27, 5; 16, 9, 4; v. aliquando.
* Pleon., with denique: tandem denique asinali verecundiā ductus,App. M. 4, p. 153, 3; so, tandem denique,id. ib. 3, p. 138, 39; 10, p. 245, 16; cf.: recreatus denique tandem,Amm. 17, 12, 10.
Charlton T. Lewis, Charles Short, A Latin Dictionary