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