The Collaborative International Dictionary
Rombowline
Rombowline \Rom*bow"line\, n. [Etymol. uncertain.] (Naut.) Old, condemned canvas, rope, etc., unfit for use except in chafing gear. [Written also rumbowline.]
Wiktionary
rombowline
n. (context nautical English) Old, condemned canvas, rope, etc., unfit for use except in chafing gear.