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

Hyla staufferi does not occur on the Caribbean versant of Costa Rica and Panamá.

From The Systematics of the Frogs of the Hyla Rubra Group in Middle America by Juan R. león

He was well versant in military affairs and took great delight in war, of which he endured the labours and privations with much patient fortitude.

From A General History and Collection of Voyages and Travels - Volume 05 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

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

On the inland versant a narrow native shaft has been sunk for gold by Mr. Sam, now native agent under Mr. Crocker.

From To The Gold Coast for Gold, Vol. II A Personal Narrative by Sir Richard Francis Burton