ignōrātĭo (noun F) : ignoro
* Want of knowledge or acquaintance, ignorance (freq. in Cic.; elsewh. rare).
* With gen. obj.: timentibus ceteris propter ignorationem locorum,Cic. Rep. 1, 17, 29; so, numquam antea visi regis,Curt. 3, 12, 17: stirpis et generis,Cic. Lael. 19, 70: dialecticae,id. Fin. 3, 12, 41: causarum,id. Div. 2, 22, 49: juris,id. Leg. 1, 6, 18: maximarum rerum (with summus error),id. N. D. 1, 1, 2 fin.: veritatis,id. ib. 1, 16, 43: sui,id. Clu. 39, 109: virtutis,id. Rep. 1, 34: decori,id. Or. 21, 70: facti,Dig. 16, 1, 7.
* With de: cujus scientiam de omnibus constat fuisse, ejus ignoratio de aliquo purgatio debet videri,Cic. Sull. 13, 39 fin.

s. TLL