Homesickness; (also) the prevalent illness of a country or region (rare).
Origin
Late 18th century; earliest use found in Philip Thicknesse (1719–1792), travel writer. From French mal du pays homesickness from mal + du of the + pays country.
Definition of mal du pays in US English:
mal du pays
nounˌmal duː ˈpeɪ
Homesickness; (also) the prevalent illness of a country or region (rare).
Origin
Late 18th century; earliest use found in Philip Thicknesse (1719–1792), travel writer. From French mal du pays homesickness from mal + du of the + pays country.