recurrent
rih-KUR-untadjMeaning happening again and again
Memory hook RE-CURRENT: the current brings it back. Kai tosses the beach ball out, and the waves carry it back to him, again and again and again. Its return is recurrent.
Lost keys are a recurrent problem in our house; they go missing again every few weeks.
In context Flooding is a recurrent danger in the valley; it has returned every few springs for as long as anyone can remember.
Similar recurring, repeated, returning, frequent
Opposite one-time, isolated, single
From Latin recurrere, “to run back, return”: re (back) + currere (to run).