“socer”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“socer”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
socer in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
De Vaan, Michiel (2008) Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN