German (south and Rhineland) and Dutch: from a reduced form of
the medieval personal name Eloy (Latin Eligius, a
derivative of eligere ‘to choose or elect’), popularized a
6th-century saint who came to be venerated as the patron of smiths and
horses.
Italian (Sardinian): from the
personal name Loi, a short form of Balloi, a pet form of
Salvatóre.
Spanish and Italian: possibly from a reduced
form of the personal name Eloy (see 1 above), of which the
Italian form is Eligio.
French (Picardy): nickname
for someone who was quick to have recourse to the law: a frequent or
vexatious litigant, or perhaps a metonymic occupational name for a
lawyer.
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
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