different between leery vs skeptical

English

1718, "untrustful, suspicious", either from leer +? -y, lear (“learning, knowledge”) +? -y. More at leer, lear.

leery (comparative leerier, superlative leeriest)

Cautious, suspicious, wary, hesitant, or nervous about something; having reservations or concerns.
Since he was bitten by a dog when he was young, he has always been leery of animals.

skeptic +? -al

skeptical (comparative more skeptical, superlative most skeptical) (American spelling)

Having, or expressing doubt; questioning.
My teacher was skeptical when I told her my dog ate my homework.
I can see why people are so skeptical [sic] about him, but I think he's on to something here. (regarded by organizations such as the BBC as an error)
Tom was skeptical when Paul told him that he saw Bigfoot.
Of or relating to philosophical skepticism or the skeptics.

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