ob + ponere, opponere, oppositus [L]
opposite [OF]
opposit
https://www.etymonline.com/word/opposite#etymonline_v_7085
https://www.merriam-webster.com/dictionary/opposite#dictionary-entry-1
https://www.merriam-webster.com/dictionary/opposite#dictionary-entry-2
https://www.merriam-webster.com/dictionary/opposite#dictionary-entry-3
https://www.merriam-webster.com/dictionary/opposite#dictionary-entry-4
https://anglo-norman.net/entry/opposite
https://latin-dictionary.net/definition/28768/oppositus-opposita-oppositum
https://latin-dictionary.net/definition/28763/oppono-opponere-opposui-oppositus