peregrinatio

Latin peregrinus came from peregre (abroad, in foreign parts), from per (through) + ager (field, land). A peregrinus was someone traveling through foreign fields — a stranger, an outsider, a person far from home. The word entered Old French as pelerin and English as pilgrim. The religious meaning — a person traveling to a holy place — was a specialization of the broader concept. Every pilgrim is first a stranger.

Christian pilgrimage formalized in the fourth century. Helena, mother of Emperor Constantine, traveled to Jerusalem around 326-328 CE and identified sites associated with Jesus's life — the Church of the Holy Sepulchre was built on her identification of the crucifixion site. Jerusalem, Rome, and Santiago de Compostela became the three great pilgrimage destinations of medieval Christendom. The roads to Santiago alone carried an estimated 250,000 pilgrims per year at their medieval peak.

Chaucer's Canterbury Tales (1392) is the most famous literary depiction of pilgrimage — a group of pilgrims traveling to Thomas Becket's shrine, telling stories along the way. The pilgrimage was social as well as spiritual. The journey was as important as the destination. Inns, hostels, and hospitals (the word itself means 'host house' for travelers) lined pilgrimage routes. An entire economic infrastructure existed to serve the peregrini.

Modern pilgrimage continues. About 350,000 people walk the Camino de Santiago each year. Two million visit Lourdes. Millions perform the Hajj. The word has expanded to secular usage — a pilgrimage to Elvis's Graceland, a pilgrimage to a favorite author's home. The sacred and the secular uses share the original Latin condition: being far from home, traveling through foreign fields, moving toward something meaningful.