Word

渡る

亘る、渉る、亙る
わたる
to cross over; to go across; to extend; to cover; to range; to span
Word

幾年にもわたる

幾年にも渡る、幾年にも亘る、幾年にも亙る
exp
いくねんにもわたる
extending over a number of years
Word

連亘

聯亙
れんこう
extending in a row
Word

亙古

こうこ
from long ago up until the present day