Lewis & Short

2. quī, adv. interrog., rel. and indef. [old abl. of 1. qui].

  1. I. Interrog., in what manner? how? whereby? by what means? why?
    1. A. In direct questions: quī minus eadem histrioni sit lex quae summo viro? Plaut. Am. prol. 76: Quī, amabo? id. Bacch. 1, 1, 19: quī scire possum? id. ib. 2, 2, 13: Quī in mentem venit tibi istuc facinus facere? id. ib. 4, 4, 31: Quī non? id. ib. 5, 2, 44: quī vero dupliciter? id. Mil. 2, 3, 25: quī vero? id. Merc. 2, 3, 60: quī scis? Ter. And. 2, 1, 2: quī istuc facere potuit? id. Eun. 4, 3, 15: quī potui melius? id. Ad. 2, 2, 7: sed nos deum nisi sempiternum intellegere quī possumus? Cic. N. D. 1, 10, 25: quī potest esse in ejusmodi trunco sapientia? id. ib. 1, 30, 84: quī potest? id. Ac. 2, 31, 100: quī ego minus in Africam traicerem, Liv. 28, 43, 18.
    2. B. In indirect questions: nimis demiror, quī illaec me donatum esse aureā paterā sciat, Plaut. Am. 2, 2, 133: quī istuc credam ita esse, mihi dici velim, Ter. Phorm. 5, 6, 15: nec quī hoc mihi eveniat scio, id. Hec. 2, 3, 6: neque videre, quī conveniat, Liv. 42, 50.
    3. C. In curses (cf. Gr. πῶς, and Lat. utinam), how, would that, if but: quī illum di deaeque magno mactassint malo, Enn. ap. Non. 342, 14 (Trag. Rel. v. 377 Vahl.): quī te Juppiter dique omnes perduint! Plaut. Men. 5, 5, 31: quī istum di perdant! id. Trin. 4, 2, 78: quī te di omnes perdant! id. ib. 4, 2, 155; Ter. Phorm. 1, 2, 73.
      Ellipt.: quī illi di irati! Cic. Att. 4, 7, 1.
  2. II. Rel., wherewith, whereby, wherefrom, how (referring to all genders and both numbers).
      1. 1. In gen.: date ferrum, quī me animā privem, Enn. ap. Non. p. 474, 30 (Trag. Rel. v. 233 Vahl.): patera, quī Pterela potitare rex est solitus, Plaut. Am. 1, 1, 104; 1, 3, 37: sucophantia, quī admutiletur miles, id. Mil. 3, 1, 172; id. Capt. 1, 1, 33; 3, 4, 24: mihi dari … vehicla quī vehar, id. Aul. 3, 5, 28: multa concurrunt simul, Quī conjecturam hanc facio, Ter. And. 3, 2, 32: in tantā paupertate decessit, ut quī efferretur, vix reliquerit, Nep. Arist. 3, 2.
      2. 2. Esp., of price, at what price, for how much, = quanti: indica minumo daturus quī sis, quī duci queat, Plaut. Pers. 4, 4, 41: quī datur, tanti indica, id. ib. 4, 4, 109: ut quantum possit quīque liceat veneant, id. Men. 3, 3, 25.
    1. B. Transf., that, in order that: Ca. Restim volo mihi emere. Ps. Quam ob rem? Ca. Quī me faciam pensilem, Plaut. Ps. 1, 1, 87: ut det, quī fiamus liberi, id. Aul. 2, 4, 31: facite, fingite, invenite, efficite, quī detur tibi: Ego id agam, mihi quī ne detur, Ter. And. 2, 1, 34 sq.
    2. C. Indef. (only with particles of emphasis and assurance; cf. Gr. πώς, and v. Fleck. Krit. Misc. p. 28; Lorenz ad Plaut. Most. 811; Brix ad Plaut. Capt. 550), in some way, somehow, surely (ante-class.); with hercle: hercle quī, ut tu praedicas, Cavendumst me aps te irato, Plaut. Ps. 1, 5, 58: hercle quī multo improbiores sunt, quam a primo credidi, id. Most. 3, 2, 139: hercle quī aequom postulabat senex, id. Stich. 4, 1, 53; id. Men. 2, 3, 74.
      With edepol: edepol quī te de isto multi cupiunt nunc mentirier, Plaut. Mil. 3, 1, 184: edepol quī quom hanc magis contemplo, magis placet, id. Pers. 4, 4, 15; id. Am. 2, 2, 144.
      With at (cf. atquī), and yet, but somehow: Gr. Non audio. Tr. At pol quī audies, Plaut. Rud. 4, 3, 9; id. Am. 2, 2, 73.
      With quippe: horum tibi istic nihil eveniet, quippe quī ubi quod subripias nihil est, Plaut. Aul. 2, 5, 22: ea nimiast ratio, quippe quī certo scio, etc., id. Truc. 1, 1, 49: quippe quī Magnarum saepe id remedium aegritudinumst, Ter. Heaut. 3, 2, 27.
      With ut: an id est sapere, ut quī beneficium a benevolente repudies? Plaut. Trin. 3, 2, 11: et eum morbum mi esse, ut quī med opus sit insputarier? id. Capt. 3, 4, 21; id. Bacch. 2, 3, 49.