In old English law . A shield; metaphorically one of a noble family. Clypei prostrati, noble families extinct. Mat. Paris, 463. CO. A prefix to words, meaning “with” or “in conjunction” or “joint;” e. g., cotrustees, co-executors. Also an abbreviation for “county,” (Gilman v. Sheets, 78 Iowa, 499, 43 N. W. 299,) and for “company,” (Railroad Co. v. People, 155 111. 299, 40 N. E. 599.)
Black’s Law Online Dictionary
