recurring

(verb) happen or occur again. Synonyms: recur, repeat. Example: "This is a recurring story."

(verb) return in thought or speech to something. Synonyms: recur, go back.

(verb) have recourse to. Synonyms: fall back, resort, recur. Example: "The government resorted to rationing meat."

(adj) coming back. Synonyms: revenant. Example: "A revenant ghost."