MEANING: noun: Boasting or boastfulness.

ETYMOLOGY: From Latin jactantia, from jactantem, present participle of jactare (to throw about), frequentative of jacere (to throw). Earliest documented use: 1623.

TACTANCY - of a sensitive and inoffensive nature

FACTANCY - a misrepresentation of the existing state of affairs; see "truthiness"

JACFANCY - the pumpkin has been carved into an very interesting image
(compare JACANCY, where the pumpkin is empty)