English
landsickness
From land + sickness.
Proto-Indo-European *lendʰ- ‘land’
Proto-Germanic *landą
Proto-West Germanic *land ‘land’
Old English land
Middle English lond ‘an independent nation’
English land
Proto-Germanic *seukaną ‘to be sick’
…
Proto-West Germanic *seuk ‘sick’
Old English sēoc ‘sick’
Old English sēocnes ‘sickness, disease’
Middle English sikness
English sickness
Today it means
noun A form of motion sickness experienced on land after an extended period spent at sea
Language periods are conventional ranges, not dates for this word.
Etymograph / landsickness