to mourn for; to grieve for; to condole with (the bereaved family, etc.)
to hold a memorial service for; to hold a funeral service for
家族で祖父を静かに弔った。
The family quietly mourned their grandfather.
村人たちは犠牲者を弔って花を捧げた。
The villagers mourned the victims and offered flowers.
この地域では命日に故人を弔う習慣がある。
In this region, it is customary to mourn the deceased on the anniversary of their death.