irrelevancy

The word 'irrelevancy' is built upon the core concept of 'relevance,' which originates from the Latin 'relevare,' meaning "to lift up" or "to lighten." In classical rhetoric, a point that 'lifted up' or alleviated the matter at hand was considered pertinent. The negative prefix 'ir-' (a variant of 'in-') was attached to negate this quality, forming 'irrelevant,' meaning "not bearing upon the case." Finally, the abstract noun suffix '-cy' was appended to create a term denoting the state or condition of being unrelated or unimportant to the subject. Thus, the literal progression from "not lifting up" evolved into the modern abstract meaning of a lack of connection or significance.

Structure: ir (not) + relevant (pertinent) + cy (state/quality) - ir: A Latin prefix meaning "not," an assimilated form of 'in-' used before 'r'. - relevant: From the present participle of the Latin verb 'relevare,' meaning "to lift up, to lighten," hence "pertinent." - cy: A noun-forming suffix of Latin origin ('-tia', '-cia'), indicating a state, condition, or quality.