“In situ”

Michael Zwingli

Civis Illustris

  • Civis Illustris

I have been made curious about something. There is a phrase use in English, “in situ”, to mean “in its proper position”. It has just struck me that situ is not a proper ablative for situs. Is situ an example of a recognized “alternate form” of sito, the regular ablative?
 

Pacifica

grammaticissima

  • Aedilis

Location:
Belgium
Situ is the regular ablative form of the fourth-declension noun situs, -us.
 
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