Genesis 38:19
She left immediately, removed her veil, and put on her widow's clothes.
Genesis 38:14
So she removed her widow's clothes and covered herself with a veil. She wrapped herself and sat at the entrance to Enaim which is on the way to Timnah. (She did this because she saw that she had not been given to Shelah as a wife, even though he had now grown up.)
2 Samuel 14:2
So Joab sent to Tekoa and brought from there a wise woman. He told her, "Pretend to be in mourning and put on garments for mourning. Don't anoint yourself with oil. Instead, act like a woman who has been mourning for the dead for some time.
2 Samuel 14:5
The king replied to her, "What do you want?" She answered, "I am a widow; my husband is dead.