trait on

[Charles Doyle]

And speaking of back formations like "trait" < "traitor":
the noun "mentee" ('student who has a mentor') seems now
thoroughly ensconced in academic jargon.  It presupposes a
verb "ment" as the root of the noun "mentor"--even though
the verb actually used (in academic parlance) is "mentor."

--Charlie

------------------------------------------------------------
The American Dialect Society - http://www.americandialect.org