Sentence:  The original also makes frequent use of the circumlocutory type of poetic expression known as the <WSD>kenning</WSD>, which consists (in its simplest form) of a base-word (always a noun, sometimes the second of the two elements in a compound word) accompanied by a determinant (either a noun in the genitive or, in the case of a compound-word <WSD>kenning</WSD>, the first of the compound's two elements). 
Meaning of the word marked with <WSD> tags:  A metaphorical phrase used in Germanic poetry (especially Old English or Old Norse) whereby a simple thing is described in an allusive way.