The words salver, salvor sound the same but have different meanings and spellings. Why do salver, salvor sound the same even though they are completely different words?
The answer is simple: salver, salvor are homophones of the English language.
A tray for serving food or drinks.
One who salvages or assists in salvaging a ship or its cargo.
A ship used in salvage.
Definitions from The American Heritage® Dictionary of the English Language, 4th Edition and Wordnik.
Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.