adverb, adjective Law.
(of a legal proceeding or judgment) directed against a thing, rather than against a person, as a legal proceeding for the recovery of property.
Compare in personam.
Origin of in rem
1880–85; < Latin: literally, against (the) thing
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Word Origin for in rem
Latin, literally: against the matter
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012