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

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

I expected a corresponding formation upon the opposite eastern versant: we found only a huge crest, a spine of black plutonic rock, intensely ugly and repulsive.

From The Land of Midian — Volume 2 by Sir Richard Francis Burton

Remarks.—Previous authors who treated Syrrhophus placed this species in the western complex, because it occurs on the Pacific versant and has a reduced outer palmar tubercle.

From A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope by John D. Lynch

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