εὐθύς

Etymology
Beekes tentatively takes the word as a cross of +. For, Beekes implicitly prefers Willi's derivation from from the root , with original basic meaning "to make right". The Ionic form is from a dissimilated.

Adjective

 * 1) straight, direct
 * 2)  straightforward, open, frank

Adverb

 * 1)  straight
 * 2) simply
 * 3) in the face of
 * 4)  straightaway, forthwith, at once
 * 5)  directly, simply

Usage notes
In adverbial usage, typically the masculine form is used for time, while the neuter  is used for place.