Assiduity: the ability to sit down on your ass and do what you have to do. As in, “She’s an assiduous programmer. She just sits on her ass and cranks out code until she’s done.”
Francophiles out there will note easily the root similarity to ‘assis’ (seated) from which in fact it derives. I’m told though that the seemingly obvious relationship between ‘ass’ and ‘assiduity’ is quite fortuitous.
Anyway, still on a hiring/coding binge here trying to get out our 12r1 release. So if you know of any assiduous coders out there, send them my way: email@example.com