The origin of the name Delilah is Hebrew
This is how Delilah is written in Hebrew:
דְּלִילָה = Dĕliylah
The biblical meaning of the name Delilah is feeble.
Delilah was the Philistine woman beloved by Samson
The name Delilah appears in the bible in the following verses:
Judges 16:4 KJV
And it came to pass afterward, that he loved a woman in the valley of Sorek, whose name was Delilah.
Judges 16:6 KJV
And Delilah said to Samson, Tell me, I pray thee, wherein thy great strength lieth, and wherewith thou mightest be bound to afflict thee.
Judges 16:10 KJV
And Delilah said unto Samson, Behold, thou hast mocked me, and told me lies: now tell me, I pray thee, wherewith thou mightest be bound.
Judges 16:12 KJV
Delilah therefore took new ropes, and bound him therewith, and said unto him, The Philistines be upon thee, Samson. And there were liers in wait abiding in the chamber. And he brake them from off his arms like a thread.
Judges 16:13 KJV
And Delilah said unto Samson, Hitherto thou hast mocked me, and told me lies: tell me wherewith thou mightest be bound. And he said unto her, If thou weavest the seven locks of my head with the web.
Judges 16:18 KJV
And when Delilah saw that he had told her all his heart, she sent and called for the lords of the Philistines, saying, Come up this once, for he hath shewed me all his heart. Then the lords of the Philistines came up unto her, and brought money in their hand.