noun
grave keeper; grave maintenance
Refers to a person who looks after a grave, or the act of maintaining a grave. Often used in the context of family graves.
彼は先祖の墓守をしている。
He is the keeper of his ancestors' grave.
お盆には墓守のために田舎に帰る。
During Obon, I return to the countryside for grave maintenance.
Compound of 墓 (haka, 'grave') and 守 (mori, 'guardian, keeper').