Definition of pernoctate in US English:

pernoctate

verb

[no object]formal
  • Pass the night somewhere.

Origin

Early 17th century: from Latin pernoctat- ‘spent the night’, from the verb pernoctare, from per- ‘through’ + nox, noct- ‘night’.

Pronunciation

pernoctate

/pərˈnäkˌtāt/