Overdye

What does Overdye mean?

A dyeing process most frequently used on indigo or black denim fabric.

Heddels explains Overdye

Overdyeing is a process where the fabric is either dyed for too long or dyed a second time. It is most often used on denim to add an overtone of color to the indigo.

Additional Resources

Elhaus Warbonnet 16oz denim, overdyed with sulfur:

Raw Denim Term - Overdye

Raw Denim Term - Overdye

Source: elha.us