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

There is hardly any versant or shed; in places the land sinks below the water-level; and, despite the excellent brick sewers, the showers prefer to sop and sod the soil.

From To the Gold Coast for Gold A Personal Narrative in Two Volumes.—Volume I by Sir Richard Francis Burton

The western versant supplies the gold of Senegambia, the southern that of Ashanti and Wásá.

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

His literary education likewise had been so carefully attended to, that he was considered as more versant in these things than his situation required.

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

In the south-western versant the largest river is the Kapuas, which, rising near the centre of the island, falls into the sea between Mampawa and Sukadana after a long and winding course.

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