Webster's Revised Unabridged Dictionary · 1913

Besnow

Besnow ({not transcribed}) , transitive verb

[Old English bisnewen, Anglo-Saxon besnīwan; pref. be- + snīwan to snow.]

1.
To scatter like snow; to cover thick, as with snow flakes. [Rare] — Gower
2.
To cover with snow; to whiten with snow, or as with snow.