Learned borrowing from Latin oculus ( “ eye ” ) . Doublet of occhio .
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Lewis’s Elementary Latin Dictionary
1890 American Book Company edition; pinned Perseus XML digitizationoculus
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Learned borrowing from Latin oculus . Doublet of œil .
De Vaan reconstructs Proto-Italic * okʷ(e)los m or * okʷ(e)lom n , ultimately from an uncertain descendant of the Proto-Indo-European root * h₃ekʷ- ( “ to see; eye ” ) suffixed with "}},"i":0}}]}' id="mweg"> -ulus ( from Proto-Italic * -elos , from Proto-Indo-European * -lós ) . Witczak 2021 argues it was originally a neuter diminutive, whereas Sen 2015 sees it as an agent noun formation. Compare the gender of the cognates Sanskrit अक्षि n ( ákṣi , “ eye ” ) and Ancient Greek ὄσσε n du ( ósse , “ eyes ” ) and ὤψ f ( ṓps , “ eye ” ) .
If the noun was originally neuter, then the masculine nominative singular oculus may be a back-formation from an original neuter dual form oculī (reinterpreted as a masculine nominative plural), as proposed by Alan Nussbaum. For other survivals of the second-declension neuter dual ending, see also the masculine-like plurals of caelum ( “ sky ” ) , frēnum ( “ bridle ” ) , and rāstrum ( “ rake ” ) .
Learned borrowing from Latin oculus .
Borrowed from French oculus , from Latin oculus . Doublet of ochi .
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