FIGMENT

figment

(noun) a contrived or fantastic idea; “a figment of the imagination”

Source: WordNet® 3.1

Etymology

Noun

figment (plural figments)

A fabrication, fantasy, invention; something fictitious.

Usage notes

• Often used in the form "a figment of [someone's] imagination".

Source: Wiktionary

Fig"ment, n. Etym: [L. figmentum, fr. fingere to form, shape, invent, feign. See Feign.]

Definition: An invention; a fiction; something feigned or imagined. Social figments, feints, and formalism. Mrs. Browning. It carried rather an appearance of figment and invention . . . than of truth and reality. Woodward.

Source: Webster’s Unabridged Dictionary 1913 Edition