🔼The name Jonan in the Bible
The name Jonan (or Jonam according to some translations) occurs only once in the Bible. Luke mentions him as an ancestor of Jesus Christ in his genealogy through Nathan, son of David (as opposed to the Matthean genealogy, which goes through Solomon; Luke 3:30).
🔼Etymology of the name Jonan
Jonan was a great-great-great-great-great-grandson of David and his name was certainly Hebrew. And as such, it was most probably derived from the verb חנן (hanan), meaning to be gracious:
In order to create the Jo-part of our name, the name Jonan should either be seen as an active form of the verb: יחננ, meaning He Will Be Gracious, which insinuates that the Lord is the subject of this name. It could even be a transliteration of the more complete יהחננ (Jahanan), which would consist of our verb plus יה (Yah), which is an abbreviated form of the Tetragrammaton יהוה, YHWH, or Yahweh. In that case our name would mean Yah Is Gracious.
For a meaning of the name Jonan or Jonam, NOBSE Study Bible Name List reads Yahweh Has Been Gracious and Spiros Zodhiates (The Complete Wordstudy Dictionary) proposes Jehovah Is Gracious.