AVENTINE
Av"en*tine, n.

Defn: A post of security or defense. [Poetic]
Into the castle's tower, The only Aventine that now is left him.
Beau. & Fl.

AVENTRE
A*ven"tre, v. t.

Defn: To thrust forward (at a venture), as a spear. [Obs.] Spenser.

AVENTURE
A*ven"ture, n. Etym: [See Adventure, n.]

1. Accident; chance; adventure. [Obs.] Chaucer.

2. (Old Law)

Defn: A mischance causing a person's death without felony, as by drowning, or falling into the fire.

AVENTURINE
A*ven"tu*rine, n. Etym: [F. aventurine: cf. It. avventurino.]

1. A kind of glass, containing gold-colored spangles. It was produced in the first place by the accidental (par aventure) dropping of some brass filings into a pot of melted glass.