accessĭo, ōnis, f. [accedo], a going or coming to or near, an approach.
I In gen.: quid tibi in concilium huc accessio est? why comest thou hither? Plaut. Trin. 3, 2, 86; cf.: quid tibi ad hasce accessio est aedīs prope? id. Truc. 2, 2, 3; Cic. Univ. 12: ut magnas accessiones fecerint in operibus expugnandis, sallies , Auct. B. Alex. 22: suo labore suisque accessionibus, i. e. by his labor of calling on people , by his visits , Cic. Verr. 2, 2, 53, 133 fin. —
II In part.
A In medicine, t. t., the access , attack , or paroxysm of a disease , Cels. 2, 12; 3, 3 sq.; Sen. Ep. 85, 12; id. N. Q. 6, 18, 6; Suet. Vesp. 23 al.—
B A coming to in the way of augmentation , an increase , addition.
1 In abstracto : paucorum annorum, Cic. Lael. 3, 7: pecuniae, Nep. Att. 14, 2: fortunae et dignitatis, Cic. Fam. 2, 1; 7, 6; 10, 9; id. Rep. 2, 21: odii, Auct. B. Alex. 48: dignitatis, Vell. 2, 130 fin. —
2 The thing added , the addition , or accession: in concreto : Scaurus accessionem adjunxit aedibus, added a new part , Cic. Off. 1, 39, 138; so id. Att. 16, 16. Thus Syphax is called, accessio Punici belli, as not being the chief enemy in the Punic war, but, as it were, an appendage to the war, Liv. 47, 7; so in Pliny: turbā gemmarum potamus—et aurum jam accessio est, and gold is only accessory , a mere appendage , 33 prooem. fin. —
C In rhetor., an addition that makes a definition complete : nisi adhiberet illam magnam accessionem, Cic. Ac. 2 ( Luc. ), 35, 112; so id. Fin. 2, 13.—
D The addition to every kind of fee or tax (opp. decessio ), Cato R. R. 144: decumae, Cic. Rab. Post. 11, 30; so id. Verr. 2, 3, 33, § 116 al.