The quality or state of being electrical; the characteristic of having or involving electricity.
From 'electrical' (adjective) plus suffix '-ness' (meaning state or quality). 'Electrical' comes from 'electric' which derives from Greek 'elektron' (amber).
Forming abstract nouns with '-ness' is so common that we often don't notice it, but 'electricalness' is rarely used because we usually just say 'electricity' instead!
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