assĭdŭĭtas (ads-), ātis, f. [2. assiduus], a constant presence with any one (in order to serve, aid, etc.; cf. assideo, I. B. 1.; most freq. in Cic.).
I In gen.: medici adsiduitas, constant attendance , Cic. Att. 12, 33: cotidiana amicorum adsiduitas et frequentia, Q. Cic. Petit. Cons. 1, 3: eorum, qui abs te defensi sunt, id. ib. 1, 13: eandemque adsiduitatem tibi se praebuisse postridie, the same unceasing attendance , Cic. Deiot. 15, 42: summā adsiduitate cotidianā aliquem tractare, id. ad Q. Fr. 1, 3, 8.—So of the constant attendance, in the assemblies, of candidates for office (cf.: habitare in oculis, Cic. Planc. 27, 66): altera pars petitionis, quae in populari ratione versatur, desiderat nomenclationem, blanditiam, adsiduitatem, etc., Q. Cic. Petit. Cons. 11, § 43: adsiduitatis et operarum harum cotidianarum putat esse consulatum, Cic. Mur. 9, 21: valuit adsiduitate, valuit observandis amicis, valuit liberalitate, id. Planc. 27 fin. : homo aut frugalitatis existimatione praeclara aut, id quod levissimum est, adsiduitate, id. Verr. 2, 1, 39. —First in Suet., without access. idea, for constant presence , Suet. Tib. 10.—
II Esp., with gen. of thing , with the idea of continuance in time, the continuance , duration , constancy of any thing; sometimes a frequent occurrence or repetition of it : adsiduitate molestiarum sensum omnem humanitatis ex animis amittimus, Cic. Rosc. Am. 53 fin. : adsiduitate cotidianā et consuetudine oculorum adsuescunt animi, id. N. D. 2, 38, 96: bellorum, id. Off. 2, 21, 74: epistularum, unbroken correspondence , id. Fam. 16, 25: orationis, id. Att. 16, 5, 2: dicendi adsiduitas aluit audaciam, id. Inv. 1, 3, 4: contubernii, Tac. Or. 5: spectaculorum, Suet. Aug. 43: concubitus, id. Dom. 22: opprobrii, Vulg. Eccli. 41, 9: ejusdem litterae, Auct. ad Her. 4, 12, 18.—Without gen. of thing : talis in rem publicam nostram labor, adsiduitas, dimicatio, assiduity , unremitting application , Cic. Balb. 2, 6: adsiduitas illius non est, Vulg. Eccli. 7, 14: viri mendacis, ib. ib. 20, 27; 38, 28.