_negotium suscipere_—to undertake an affair.
_negotium obire, exsequi_—to execute, manage a business, undertaking.
_negotium conficere, expedire, transigere_—to arrange, settle a matter.
_negotia agere, gerere_—to be occupied with business, busy.
_multis negotiis implicatum, districtum, distentum, obrutum esse_—to
be involved in many undertakings; to be much occupied, embarrassed,
overwhelmed by business-claims.
_negotiis vacare_—to be free from business.
_occupatum esse in aliqua re_—to be engaged upon a matter.
_intentum esse alicui rei_—to be engaged upon a matter.
_negotium alicui facessere_ (Fam. 3. 10. 1)—to give a person trouble,
inconvenience him.
_magnum negotium est_ c. Inf.—it is a great undertaking to...
_nullo negotio_—without any trouble.
_otiosum esse_—to be at leisure.
_in otio esse_ or _vivere_—to be at leisure.
_otium habere_—to be at leisure.
_otio frui_—to be at leisure.
_otio abundare_—to have abundance of leisure.
_otium sequi, amplexari_—to be a lover of ease, leisure.
_otiosum tempus consumere in aliqua re_—to spend one's leisure hours
on an object.
_otio abūti_[1] or _otium ad suum usum transferre_—to use up, make
full use of one's spare time.
_(in) otio languere et hebescere_—to grow slack with inactivity,
stagnate.
_otio diffluere_—to grow slack with inactivity, stagnate.
_desidiae et languori se dedere_—to abandon oneself to inactivity and
apathy.
_ignaviae_[2] _et socordiae se dare_—to abandon oneself to inactivity
and apathy.
_per luxum et ignaviam aetatem agere_—to pass one's life in luxury and
idleness.
[1] _abuti_ properly = to consume, make full use of. From this is
developed the rarer meaning to use in excess, abuse = _perverse,
intemperanter, immoderate uti_. Abuse, misuse = _pravus usus, vitium
male utentium, insolens mos_. _abusus_ is only found in the Jurists,
and _abusio_ is a technical term of rhetoric = _κατάχρησις_.
[2] The original meaning of _ignavia_ (_in-gnavus_, cf. _navus,
navare_) is not cowardice but laziness.