1611 J. Florio Alla recisa, cuttingly, hackingly.
1879 T. F. Allen II. 494 He is compelled to hawk, and cough hackingly and dry.
1904 R. Kipling 240 He coughed again hard and hackingly.
1995 (Nexis) 23 Feb. 27 He coughs, hackingly, then sits down in a saggy armchair and rolls a cigarette.
2008 T. Glyde (2009) 100 When I cough..the sound is so hackingly medieval that people look at me in shops.