Lewis Short
(adj.adv.) : spissus, a, um, adj.root spi-, to press; cf. Lith. spitu.
* Lit., thick, crowded, close, compact, dense (mostly poet and in post-Aug. prose; syn.: crassus, densas): durata ac spissa,Lucr. 2, 444: corpus,id. 6, 127: liquor,Ov. M. 12, 438: sanguis,id. ib. 11, 367: aër,id. ib. 1, 23: grando,id. ib. 9, 222 et saep.: corona Non tam spissa viris,Verg. A. 9, 509; so, coronae,Hor. A. P. 381: sedilia,id. ib. 205: theatra,id. Ep. 1, 19, 41: coma,id. C. 3, 19, 25; cf.: nemorum comae,id. ib. 4, 3, 11: ramis laurea,id. ib. 2, 15, 9: harena,Verg. A. 5, 336; cf. litus,Ov. M. 15, 718: tunica,of a close texture,Plaut. Ep. 2, 2, 46: navis juncturis aquam excludentibus,Sen. Ep. 76: caligo,Ov. M. 7, 528: noctis umbrae,Verg. A. 2, 621: tenebrae,Petr. 114, 3: nubes,Ov. Am. 1, 13, 30; id. M. 5, 621; Curt. 4, 3, 16; 8, 13, 24.—Comp.: semen,Col. 4, 33, 3: ignis,Luc. 9, 604.—Sup.: spississima arbor (ebenus et buxus),Plin. 16, 40, 76, § 204: minimum ex nequitiā levissimumque ad alios redundat; quod pessimum ex illā est et, ut ita dicam, spississimum, domi remanet et premit habentem,Sen. Ep. 81, 21.
* Transf., of time.
* Trop., hard, difficult (rare but class.): spissum sane opus et operosum, Cic. Q. Fr. 2, 14, 1: si id erit spissius,id. Fam. 2, 10, 4: si est aliquanto spissius,id. de Or. 3, 36, 145.—Hence, adv.: spissē.
* Spissum illud amanti est verbum, Veniet nisi venit, Plaut. Cist. 1, 1, 77: nihil ego spei credo, omnes res spissas facit, Caecil. ap. Non. 392, 15; Pac., Titin., and Turp. ib. sq.: haruspices si quid boni promittunt, pro spisso evenit; Id quod mali promittunt, praesentiarum est,slowly, late,Plaut. Poen. 3, 5, 47.
* Thick, i. e. in quick succession, rapid, frequent, fast, = continuus, creber (very rare): spississima basia,Petr. 31, 1.
* Thickly, closely: calcare carbones,Plin. 36, 25, 63, § 188.—Comp., Col. 2, 9, 2; Plin. 29, 2, 9, § 31.
* Transf.
* Slowly: tu nimis spisse atque tarde incedis, Naev. ap. Non. 392, 25: habet hoc senectus, cum pigra est ipsa, ut spisse omnia videantur confieri,Pac. ib. 393, 4: cum spisse atque vix ad Antonium pervenimus,Cic. Brut. 36, 138.—Comp.: nascimur spissius quam emorimur, Varr. ap. Non. 392, 29.—*
* Rapidly: basiavit me spissius,Petr. 18, 4.
Charlton T. Lewis, Charles Short, A Latin Dictionary