Sentence:  The patient ... aborted between the second and third month; ... felt herself so well on the second day after, that she went to the washing-green; and, on her return home in the evening, was seized with a violent rigor, which, by herself and those around her, was considered as the forerunner of a <WSD>weed</WSD>. 
Meaning of the word marked with <WSD> tags:  A sudden illness or relapse, often attended with fever, which befalls those who are about to give birth, are giving birth, or have recently given birth or miscarried or aborted.