As Mick mentions in his remark, "to deem fit" is a little old-fashioned but not, I do think, more than enough that you mustn't find out how to make use of the idiom. I wouldn't contact it "Victorian" English, as it's a phrase that sees normal use even these days. https://cat-grooming-uae00976.gynoblog.com/35866396/cat-health-tips-dubai-can-be-fun-for-anyone