(Ubbo), born at Gretha in East Friesland in 1547, was a very learned professor, and chosen rector of the college of Norden in 1579. This seminary flourished exceedingly under his care; and declined as visibly after he was ejected, in 1587, for refusing to subscribe the Confession of Augsburg. The year after, he was made rector of the college of Leer; and when the city of Groningen confederated with the United Provinces, the magistrates appointed him rector of that college: which employment he filled with the highest repute near 20 years; until, the college being erected into an university, he was the first rector, and one of the chief ornaments of it by his lectures, till his infirmities prevented his public appearance. His wisdom was equal to his learning; so that the governor of Friesland and Groningen often consulted him, and seldom failed to follow his advice. He wrote Vetus Graecia illustrata, 3 vols.; Decades Rerum Frisicarum; and many other valuable works. He died in 1625.

EMMENAGOGUES, ἐμμεναγογοι, in medicine, such remedies as promote the menstrual discharge. They are thus called from εἰς "in," μήν "month," ἀγο-δοῦ, "I lead," because their natural periods of flowing are once a month.