Definition of re-blue in English:

re-blue

verb

  • 1with object To make blue again. rare.

  • 2with object US. To give (a gun) a fresh or further treatment for rust, damage, etc., using any of various processes which result in a blue-black protective finish.

Origin

Early 17th century; earliest use found in Joshua Sylvester (d. 1618), poet and translator. From re- + blue.

Pronunciation

re-blue

/riːˈbluː/