(idiomatic) to stay in one's heart; to be enduringly memorable; to be unforgettable

a memory, recollection, reminiscence / a keepsake, memento

(sumo) used by a 行司 (gyōji, “referee”) to indicate that a match has begun and is ongoing

past tense and perfective aspect of 残る (nokoru) [godan]

completely; entirely; without exception

remain, be left

forever, for good, eternally / indefinitely / for as long as one likes

until when; how long

since when; how long

when