(1) To form or exude pus
(2) To promote pus formation
To suppurate means to form and exude pus such as in suppurative inflamed body parts. An example of usage of the term suppurative may be read in the book authored by James Tyler Kent published in 1985. In his book entitled Lectures on homœopathic materia medica, he used the term several times in the following context: Localized inflammations incline to suppurate, especially in glands and cellular tissue do we have suppuration and ulcers. The glands of the neck, axilla and groin and the mammary glands swell, become hard and suppurate. First the hard swellings with the feeling as if they had sticks jagging in them, then it becomes highly inflamed and red over the part and ultimately it suppurates, discharges and heals slowly. The bone even suppurates and takes on necrosis and caries. Felons around the root of the nail and ends of the fingers. The nail suppurates and loosens and comes off. Sensation of splinters under the nails, even when they do not suppurate. The nails become hard and brittle. Warts crack open and bleed, sting and burn and suppurate.1
Word origin: Latin suppūrātus, of suppūrō, from pūr-, stem of pūs (pus)
1Kent, J. T. (1985). Lectures on homœopathic materia medica: together with Kent's 'New remedies' incorporated and arranged in one alphabetical order. New Delhi: Jain Pub..