rust

Rust is a related term of lichen.

As a verb rust

is to grow.

As a noun lichen is

any of many symbiotic organisms, being associations of fungi and algae; often found as white or yellow patches on old walls, etc.

As a verb rust

is to grow.

As a noun ruft is

(obsolete) belching.

As a verb rust

is to grow.

As a noun fust is

smoke.

As nouns the difference between rust and rost

is that rust is the deteriorated state of iron or steel as a result of moisture and oxidation while rost is alternative form of lang=en (a strong tide or current.

As a verb rust

is to oxidize, especially of iron or steel.

As a verb rust

is to grow.

As a noun ruts is

.

In transitive terms the difference between rust and roust

is that rust is to cause to oxidize while roust is to rout out of bed; to rouse.

As nouns the difference between rust and roust

is that rust is the deteriorated state of iron or steel as a result of moisture and oxidation while roust is a strong tide or current, especially in a narrow channel.

As verbs the difference between rust and roust

is that rust is to oxidize, especially of iron or steel while roust is to rout out of bed; to rouse.

As a noun rust

is the deteriorated state of iron or steel as a result of moisture and oxidation.

As a verb rust

is to oxidize, especially of iron or steel.

As an abbreviation cust is

custody.

As nouns the difference between rust and runt

is that rust is the deteriorated state of iron or steel as a result of moisture and oxidation while runt is the smallest animal of a litter, or.

As a verb rust

is to oxidize, especially of iron or steel.