offĭcĭōsus, a, um, adj. [officium].
I Full of courtcousness or complaisance , obliging , ready to serve (esp. towards one's superiors; class.; syn. studiosus): homo, Cic. Fam. 13, 21, 2: amicitia, id. Planc. 19, 46: sedulitas, Hor. Ep. 1, 7, 8: voluntas, Ov. P. 3, 2, 17.— Comp. : estne quisquam, qui tibi officiosior, liberaliorque videatur? Cic. Rosc. Com. 6, 18; id. Att. 13, 45, 3.— Sup. : officiosissima natio candidatorum, Cic. Pis. 23, 55; for which with summe : homines Lampsaceni summe in omnes cives Romanos officiosi, id. Verr. 2, 1, 24, § 63.—
II Dutiful , in accordance with duty : dolor, Cic. Tusc. 3, 28, 70: labores, id. Mil. 5, 12: pietas, Sen. Ep. 99, 18.—
B Subst.: offĭcĭō-sus , i, m., an official or attendant at a bath, Petr. 92.—Hence, adv.: offĭcĭōsē , courteously , obligingly (class.): officiose et amice factum, Cic. Lael. 20, 81: aliquid facere, Afran. ap. Charis. p. 247 P.: scribere, Cic. Att. 1, 20, 1.— Comp. : gratum etiam Pilia (fecit), sed illa officiosius, quod, etc., Cic. Att. 6, 1, 22.— Sup. : officiosissime venit ad me, Plin. Ep. 10, 21 (32) init.