Zayden

Zayden is generally understood as a modern name formed from familiar sounds, especially the ending shared with Aiden. Some families may instead connect it with Arabic Zaydan, associated with growth or increase. That is a possible naming route, not a meaning that can be assumed for every person called Zayden.

The usual English pronunciation is ZAY-dun. An Arabic-based form may place the emphasis differently, so the intended language matters. Zaiden and Zaden are alternative spellings to compare. If the name was chosen simply because its sound appealed to the family, that is a complete explanation; it does not require a confident ancient origin to become a meaningful personal name.