過疎 (かそ)depopulation

depopulationnoun (common) (futsuumeishi), nouns which may take the genitive case particle 'no'

過疎, its kanji, and other words that share them.Open this graph

Kanji in 過疎

過去かこthe past; bygone days
過程かていprocess; course
過半数かはんすうmajority
経過けいかpassage (of time); elapsing
過激かげきextreme; radical
通過つうかpassing through (a tunnel, station, town, etc.); passing by (e.g. of a typhoon)
過ぎすぎpast; after
過剰かじょうexcess; surplus
疎開そかいdispersal; evacuation
疎通そつう(mutual) understanding; communication
意思疎通いしそつう(coming to a) mutual understanding; understanding each other
疎かおろそかnegligent; neglectful
疎らまばらsparse; thin
疎外そがいestrangement; neglect
疎遠そえんestrangement; alienation
空疎くうそempty (e.g. argument); insubstantial

See how 過疎 connects to the rest of Japanese.