versant

A gadget lover, Alexander is known to roll up his sleeves to become versant with the latest security technologies.

From Reuters ● May 26, 2013

It appears that he was versant in the spasmodic diseases of women; and no more was wanting to induce the vulgar to regard him as a sorcerer, or performer of miracles.

From Ecce Homo! A Critical Inquiry into the History of Jesus of Nazareth: Being a Rational Analysis of the Gospels by Paul Henry Thiry Baron d' Holbach

The rivers of the southern versant are waters of capacious drainage, the basin of the Kahayan having, for instance, an area of 16,000 sq. m., and the Barito one of 38,000 sq. m.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" by Various

The Kayan or Bulungan river is the only other in the eastern versant that calls for mention.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" by Various

Diaz calls the two last, Teuleticle and Teatical; but though his facts are fully more to be depended upon, Clavigero may be accounted better versant in Mexican orthography.--E.

From A General History and Collection of Voyages and Travels — Volume 04 Arranged in Systematic Order: Forming a Complete History of the Origin and Progress of Navigation, Discovery, and Commerce, by Sea and Land, from the Earliest Ages to the Present Time by Robert Kerr