🔼The name Imla in the Bible
There's only one Imla(h) in the Bible and we know about him because of his famous son: the prophet Micaiah, who was brave enough to proclaim the true but negative word of YHWH to king Ahab of Israel, while many of his colleague prophets spoke favorable lies (1 Kings 22:9).
The debate concerned Ahab's plans to engage the Arameans and situation escalated when the false prophet Zedekiah, son of Chenaanah, challenged Micaiah and struck him on the cheek (1 Kings 22:24). Ahab chose to listen to Zedekiah, went to war and was killed (1 Kings 22:37).
The author of the Book of Kings spells the name of Micaiah's father with a final he: ימלה; Imlah, but the Chronicler spells it with a final aleph: ימלא; Imla'.
🔼Etymology of the name Imla
The name Imlah appears to be an active form of either of the verbs מלל (malal) or מלא (mala'):
For a meaning of the name Imla(h), NOBSE Study Bible Name List reads Fullness and Jones' Dictionary of Old Testament Proper Names has He Will Fill Up. BDB Theological Dictionary does not interpret the name Imlah but does list it under the verb מלא (mala'), meaning to fill or fulfill.