Definify.com
Webster 1913 Edition
Aventure
1.
Accident; chance; adventure.
[Obs.]
Chaucer.
2.
(Old Law)
A mischance causing a person’s death without felony, as by drowning, or falling into the fire.
Webster 1828 Edition
Aventure
AVEN'TURE
,Noun.
A mischance causing a person;s death without felony; as by drowning, or falling from a house. [See Adventure.]