Definition of "echt"

I had heard [the phrase] in Lamb House, Rye, but it was less echt Henry James than Henry James mocking echt Meredith.

1980, Anthony Burgess, Earthly Powers, Penguin, page 8

And yes, that's what it's about. Some punk writing about sleeping with Ginsberg, despite their fifty-year age difference and homogenous sexuality. What's echt heebish? There's your answer. A hack fag poet and the power to plant him on playlists nationwide.

2002 March 27, Buck Turgidson, “Heebetudinous”, in alt.california‎ (Usenet)

An echt Burkean with a snob’s disdain for the contemporary Republican Party, Hart hinted at a road not taken […] .

2009 January 18, Ross Douthat, “When Buckley Met Reagan”, in New York Times‎