Webster's Revised Unabridged Dictionary · 1913

Bash

Bash ({not transcribed}) , verb, transitive and intransitive

[Old English baschen, baissen. See Abash.]

To abash; to disconcert or be disconcerted or put out of countenance. [Obsolete]
His countenance was bold and bashed not. — Spenser

Bash , transitive verb

[Perh. of imitative origin; or compare Danish baske to strike, bask a blow, Swedish basa to beat, bas a beating.]

To strike heavily; to beat; to crush. [Provincial English & Scottish] — Hall Caine
Bash her open with a rock. — Kipling

Bash , noun

1.
a forceful blow, especially one that does damage to its target.
2.
a elaborate or lively social gathering or party.