Webster's Revised Unabridged Dictionary · 1913

Boln

Boln ({not transcribed}) , intransitive verb

[Old English bolnen, bollen; compare Danish bulne. Compare Bulge.]

To swell; to puff. — Holland

Boln ({not transcribed}) , adjective

Swollen; puffed out.
Thin, and boln out like a sail. — B. Jonson

Also: Bollen