rosary

ruusukko, rukousnauha prayer beads|Prayer beads, a string of beads used to keep track of repetitions in prayer, particularly in the Roman Catholic Marian prayer "Hail Mary" (Ave Maria)
A Roman Catholic devotion involving the repetition of a series of Marian prayers, usually 5, 15, or 20 decades of "Hail Marys", each decade beginning with "Our Father" and ending with "glory Glory Be to the Father", but sometimes including other Roman Catholic, Anglican, or Lutheran prayers.
A series or collection of thoughts, literary pieces, &c. intended for similar contemplation.
Jeremy Taylor

Every day propound to yourself a rosary or chaplet of good works to present to God at night.