noun
right of preoccupancy; right of prior occupation
Legal term referring to the right acquired by being the first to occupy or take possession of something, such as land or resources.
国際法では、無主地に対する占取権が議論されることがある。
In international law, the right of preoccupancy over terra nullius is sometimes discussed.
この土地の所有権は、最初の占取権に基づいていると主張された。
It was claimed that ownership of this land is based on the right of prior occupation.
Compound of 占取 (senshu, 'occupation' or 'taking possession') and 権 (ken, 'right'). The exact historical derivation is uncertain, but it is a Sino-Japanese legal term.