The kenning in the riddle seems to be "churl's daughter" and "licentious maid," since both phrases can simply refer to woman, as explained below.
A kenning is a phrase that consists of two words combined, usually by means of a hyphen, that function as a metaphorical description. The use of kennings was quite common in Anglo-Saxon poetry. For example, in the famous epic poem "Beowulf", "battle-sweat" is a kenning used to refer to blood.
The Anglo-Saxon riddle that we are analyzing here seems to contain two kennings referring to the same thing:
Both phrases seem to be used to describe the word "woman". Their purpose is, however, to confuse the reader, leading him or her to believe this woman is not in her best behavior, so to speak.
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