The story
From satisfactory + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.
satisfactorily
sat·is·fac·to·ri·lyToday it means: In a satisfactory manner, in a manner adequate to requirements. Full definition →
Today it means: In a satisfactory manner, in a manner adequate to requirements. Full definition →
From satisfactory + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.