Keywords: Arthurian cycle, Scythian Sarmatian adstratum, epic feast, decapitation, etymology

Rational approach to the Middle English poem «Sir Gawain and the Green Knight» provides grounds to reinterpret the poem and to compare it to the Lucian’s dialogue on friendship. This Arthurian poem synthesizes hetero-cultural elements and can be paralleled to Scythian and Sarmatian epics.