'corneredness' originates from modern English, specifically the adjective 'cornered' combined with the suffix '-ness' (a noun-forming suffix indicating a state or quality).

'cornered' derives from the verb 'corner,' which in Middle English appeared as 'corner' or related forms borrowed from Old French (from Latin 'cornu' meaning 'horn'); 'corner' developed the sense of an angle or projecting point and then the sense 'to force into a corner', and the adjective 'cornered' and the abstract noun-forming '-ness' produced 'corneredness'.

Initially related to a 'corner' or angular point (from Latin 'cornu' meaning 'horn'), the word 'corner' developed the sense 'to place or drive into a corner'; over time the derived forms came to denote the condition of being forced into a confined or defensive position — the modern meaning of 'corneredness'.