The word 'safekeeping' is correct and can be used in written English.
You can use it to refer to the act of protecting or preserving something. For example, "The museum staff take great care to ensure the safekeeping of the fragile artifacts."
"It is not just about safekeeping treasures here," he began.
Before heading out to the long grass some years ago, she left various treasures at her bank for safekeeping.
His catalogue of collectors' marks is still a classic.When war broke out in 1939 Lugt sent much of his collection to Switzerland for safekeeping.
This has meant cleaning up and moving art off-site for drying, conservation and safekeeping.
During World War II the more notable fossils were lost during an attempt to smuggle them out of China for safekeeping; they have never been recovered.
When she left Germany in 1933, she left her glass negatives with Gropius for safekeeping.
Knowing that everyone would not claim his or her balance at once, the banker (or merchant) could issue more claims to the gold and silver than the amount held in safekeeping.
According to legend, he retrieved from the bottom of the sea a perfection-of-wisdom sutra that the Buddha had entrusted to the king of the nagas (water deities) for safekeeping.
Church reform now became a contest for dominance between the priestly and the royal powers as they struggled to replace the Carolingian vision of mutual collaboration in which the church was entrusted to the monarchy for safekeeping.
In 103 he was sent by his grandmother, Cleopatra III, queen of Egypt, in the company of his brother and Ptolemy XI Alexander II, his predecessor, to Cos, an Aegean island near Asia Minor, for safekeeping.
After the supposed remains of St. Mary Magdalene were deposited in the abbey for safekeeping from Muslim armies, vast numbers of pilgrims were attracted to the abbey, and a town of about 10,000 inhabitants was established around it.
