to stay for a time in a place; live temporarily: to sojourn on the Riviera for two months.
Origin: 1200–50; (v.) Middle Englishsojurnen < Old Frenchsojorner to rest, stay < Vulgar Latin*subdiurnāre, equivalent to Latinsub-sub- + diurn(us) of a day + -āre infinitive suffix; (noun) Middle Englishsojurne < Old Frenchsojorn, derivative of the v.; see journey
late 13c., from O.Fr. sojorner "stay or dwell for a time," from V.L. *subdiurnare "to spend the day," from L. sub- "under, until" + diurnus "of a day," from diurnum "day" (see diurnal). French séjourner formed via vowel dissimilation.