continue
賡 centers on the idea of continuation: to keep going, to carry on, or to persist without stopping.
賡 combines 庚 (a phonetic component) with 貝 (shell, money), suggesting a meaning related to continuation, possibly from the idea of a continuous flow of wealth or resources. The exact historical development is uncertain.
The outer shape 庚 looks like a shelter, and inside is 貝 (shell, money). Imagine a continuous stream of shells piling up under a shelter, never stopping.
For ゾク, picture a continuous line of zombies (ゾク) carrying shells into the shelter: the endless zombie parade cues ゾク while the shells keep coming.