What Is “Holy” Water?

In Catholicism and Orthodox Christianity it is believed that theological mac daddies can make water holy 🤔. Is that true?

Epiphany of our Lord (Orthodox Christian website): https://www.goarch.org/epiphany
What You Really Need to Know About Holy Water (Orthodox Christian website): https://www.thegoodshepherd.org.au/what-you-really-need-know-about-holy-water

The official Orthoprax Christianity website: http://orthopraxchristianity.org/