The name Jalon in the Bible
Etymology of the name Jalon
The name Jalon seems to be related to the Hebrew root group לון (lun):
Another possibility is that our name was derived from the verb ילל (yalal), meaning to howl, and turned into a personal epithet by dropping the second identical consonant and adding the familiar waw-nun couple:
For a meaning of the name Jalon, NOBSE Study Bible Name List reads Passing The Night and Jones' Dictionary of Old Testament Proper Names offers Abiding; both apparently derived from לון (lun I).
BDB Theological Dictionary does not offer an interpretation of our name and also doesn't list it under a particular root but alphabetically.
We don't know anything about the mother of Jalon, and why Ezrah would call his son "Spent The Night" the Bible leaves to our imagination. But on the other hand, Ezrah may have meant to name him He Murmurs or even Howler.