In psychoanalytic theory, the part of the psyche that relates to the self or ego, or sometimes an oil or alcohol extract used in psychological research.
Likely a technical term derived from ego plus the suffix -ol (used in chemistry for alcohols and in psychology for aspects of the psyche). This appears to be specialized terminology from early 20th-century psychology.
Egol is super rare and specialized—it's the kind of word that shows how psychologists sometimes invented their own vocabulary to describe the mind, mixing Latin roots with chemistry suffixes to sound more scientific.
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