occasionally

On occasion: at relatively infrequent intervals, from time to time, sometimes.

God ſetteth no houres for the morning or evening ſacrifice because they may occaſionally be changed.

Some perhaps worship only on alternate Sundays; others still more occasionally.

On an occasion, accidentally, by chance.

Mr Tourville occasionally told his age; just turned of thirty-one.

[N]othing gave him so much joy in conversation, as an opportunity of giving the company to understand, how well he was with persons of distinguished rank and character: he would often (for example) observe, as it were occasionally, that the duke of G— was one of the best natured men in the world […].

On the occasion of something else happening; incidentally, by the way.

Were nothing els diſcourſively inſerted (as ſome little elſe occaſionally preſented it ſelfe), what paper more currently fit for the bareſt mechanicall uſes, [...]

I think it is plain, that Origen, whatever Character he may have occaſionally given of this Book, did not judge it any part of the Canon...