Definition of "designedly"

But such language is merely intended to heighten the illusion which he has designedly produced, to give his carefully-elaborated poem the air of an improvisation.

1879, F. D. Morice, Pindar, chapter 5, page 76

The unions themselves had accepted the inevitability of some reduction because of the designedly more durable character of modern equipment—[...].

1962 November, “Talking of Trains: The one-day strike”, in Modern Railways, page 291