English
rustless
From rust + -less.
Formed from rust + -less
Proto-Indo-European *h₁rewdʰ- ‘red’
…
Proto-Germanic *rustaz
Proto-West Germanic *rust
Old English rust
Middle English rust
English rust
Today it means
adj That does not rust; stainless.
Language periods are conventional ranges, not dates for this word.
Etymograph / rustless