(nonstandard) Belonging toco.Gender-neutral possessive determiner, grammatically equivalent to the genderedhis andher and the singulartheir.
1973, Michael Glenn, Richard Kunnes,Repression or Revolution?: Therapy in the United States Today, Harper Colophon Books,→ISBN,page53:
Psychiatrists are trained to try to impose the responsibility for a patient’s problem on the patient coself, rather than oncos environment.
1975, Valida Davila, “A Child’s Sexual Bill of Rights”, in Bernhardt J. Hurwood, editor,The Whole Sex Catalogue, New York, N.Y.: Pinnacle Books, published1976,→ISBN,page287:
WHEREAS a child’s sexuality is just as much a part ofcos whole person from birth as the blood that flows incos veins, makingcos sexual rights inherent and inalienable[…]
1986, Ingrid Komar,Living the Dream: Twin Oaks Community 1979-1982, Louisa, Va.: Twin Oaks Community,→OCLC,page355:
Co absents coself from the Community for more than three weeks beyond the point of having made satisfactory arrangements with the Community with regard tocos absence.
Thestages and distances are as follows:—Hitounda to Bhainsa Dobháng, 3½cos; to Bhimphédy, 4cos; to Tambakhâni, 3cos; to Chitlong, 3cos; to Thankot, 3cos; toKáthmándú, 3cos—Total, 19½cos.
“cos”, inCharlton T. Lewis and Charles Short (1879),A Latin Dictionary, Oxford: Clarendon Press
“cos”, inCharlton T. Lewis (1891),An Elementary Latin Dictionary, New York: Harper & Brothers
"cos", in Charles du Fresne du Cange’sGlossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
“cos”, inHarry Thurston Peck, editor (1898),Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers
“cos”, inWilliam Smith, editor (1854, 1857),A Dictionary of Greek and Roman Geography, volume1 & 2, London: Walton and Maberly
De Vaan, Michiel (2008),Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill,→ISBN,page139
Leon Rzeszowski (1891), “cos”, in “Spis wyrazów ludowych z okolic Żywca”, inSprawozdania Komisyi Językowej Akademii Umiejętności, volume 4, Krakow: Drukarnia Uniwersytetu Jagiellońskiego, page354