What does "aweather" mean?

On the weather side, or toward the wind; in the direction from which the wind blows (See upwind)

What is a synonym for "aweather"?

Common synonyms include: leeward, upwind, windward.

/əˈwɛðɚ/ adv

adv ·Rare ·Advanced level

Adverb

1
On the weather side, or toward the wind; in the direction from which the wind blows (See upwind)
"Helm aweather!"

From a- + weather; distantly cognate in structure to German Gewitter.