Noah Webster's Dictionary (p. pr. & vb. n.) of Fancy.

Multi-Version Concordance Fancying (1 Occurrence) 2 Thessalonians 2:2 not readily to become unsettled in mind or troubled--either by any pretended spiritual revelation or by any message or letter claiming to have been sent by us--through fancying that the day of the Lord is now here. (WEY)