No, it is not. It is the past tense and past participle of the verb to linger (stay, remain). It can be a verb form, a participial, and very rarely an adjective.
No, "lingered" is not an adverb. It is a verb that means to stay in a place longer than necessary. However, the adverb form of "lingered" would be "lingeringly," which describes the manner in which someone lingers.
The smell of fresh-baked cookies lingered in the kitchen long after they had been taken out of the oven.
After they finished their meal, the aroma of delicious food lingered in the air.
The scent of her perfume lingered in the air long after she had left the room. A feeling of uncertainty and doubt lingered in the back of his mind. The taste of the delicious meal lingered on her lips, making her savor every bite. The memories of their weekend getaway lingered in his thoughts, bringing a smile to his face.
Loitered.
The aroma of fresh coffee lingered in the air long after the pot had been turned off.
The smell of fresh-baked cookies lingered in the kitchen long after they had been taken out of the oven.
It is a verb. Example: He lingered a long time at the cafeteria.
"when she walked past me the small of her perfume lingered a bit"
Her perfume lingered long after she left the room.
She lingered after the fair, because she didn't want to leave.
After they finished their meal, the aroma of delicious food lingered in the air.
Lingered
Loitered.
He lingered after the funeral was over in order to pay his own personal last respects. While eaves dropping on two teachers in another classroom, the student lingered awhlie to see if they would come out.
There's no Latin root to 'lingered'. The English word instead derives from the Old English. So the root is lengan, which means to prolong.
existed, lasted, persisted, prevailed, remained, lingered, sustained
After he ate three cockroaches, he lingered for three days.