As Mick mentions in his comment, "to deem in good shape" is a bit aged-fashioned but not, I feel, enough that you should not learn the way to use the idiom. I would not contact it "Victorian" English, as it is a phrase that sees regular use even nowadays. It's https://cleanlitterpracticesuae31086.theisblog.com/36995834/the-5-second-trick-for-cat-grooming-uae