the now prevalent spelling of HOOPING-COUGH.

1

1739.  Mrs. E. Montagu, Corr. (1906), I. 37. One little boy had whooping cough.

2

1755.  Johnson, Hooping-cough,… (or whooping cough, from hoop, to shout).

3

1873.  Spencer, Study Sociol., iii. 55. Will it … be carried off by scarlet fever or whooping-cough?

4