Answers to Questions by Yair Davidiy (3 September 2017, 12 Elul, 5777)
Why are there no Jews named "Rusty"? (first asked by Martin Mull).
Rusty comes from "rust" from a word root meaning "red." It supposedly connotes someone with red hair. Esau (Edom) the twin brother of Jacob had red hair.
Genesis (TLB) 25:
25 The first was born so covered with reddish hair that one would think he was wearing a fur coat! So they called him "Esau."
The word translated here as "with reddish hair" in Hebrew is "Admoni."
This same expression is applied to David. All the English translations seem to understand this word (in the case of David) to mean of ruddy countenance.
Jewish tradition however held that David had red hair and this appears to be the correct understanding.
12 So he sent and brought him in. Now he was ruddy [Hebrew: "admoni" i.e. red-haired], with beautiful eyes and a handsome appearance. And the LORD said, "Arise, anoint him; for this is he."
cf. 1-Samuel 17:42.