Defn: A fertile or green spot in a waste or desert, esp. in a sandy desert.

My one oasis in the dust and drouth
Of city life.
Tennyson.

OAST
Oast (ost), n. [OE. ost, AS. ast; cf. Gr. a'i^qos burning heat.]

Defn: A kiln to dry hops or malt; a cockle. Mortimer.

OATCAKE
Oat"cake, n.

Defn: A cake made of oatmeal.

OATEN
Oat"en, a.

1. Consisting of an oat straw or stem; as, an oaten pipe. Milton.

2. Made of oatmeal; as, oaten cakes.

OATH Oath, n.; pl. Oaths. Etym: [OE. othe, oth, ath, AS. a; akin to D. eed, OS. e, G. eid, Icel. ei, Sw. ed, Dan. eed, Goth. ai; cf. OIr. oeth.]