As nouns the difference between gaby and gawby
is that gaby is (regional) a stupid, foolish person; a simpleton; a dunce while gawby is (uk|dialect|archaic) a baby.
gaby
English
Proper noun
(
en proper noun)
(female), from the (etyl) short form of Gabrielle.
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gawby
English
Noun
(
gawbies)
(UK, dialect, archaic) A baby.
(UK, dialect, archaic) A dunce.
(
webster)