Boyd’s Bible Dictionary:
These, and napkins and aprons, signify about same as today
(Luke 19:2020And another came, saying, Lord, behold, here is thy pound, which I have kept laid up in a napkin: (Luke 19:20); John 11:4444And he that was dead came forth, bound hand and foot with graveclothes: and his face was bound about with a napkin. Jesus saith unto them, Loose him, and let him go. (John 11:44); Acts 19:1212So that from his body were brought unto the sick handkerchiefs or aprons, and the diseases departed from them, and the evil spirits went out of them. (Acts 19:12)).
Concise Bible Dictionary:
Any small cloth (Acts 19:1212So that from his body were brought unto the sick handkerchiefs or aprons, and the diseases departed from them, and the evil spirits went out of them. (Acts 19:12)). The same is translated “napkin” (Luke 19:2020And another came, saying, Lord, behold, here is thy pound, which I have kept laid up in a napkin: (Luke 19:20); John 11:4444And he that was dead came forth, bound hand and foot with graveclothes: and his face was bound about with a napkin. Jesus saith unto them, Loose him, and let him go. (John 11:44); John 20:77And the napkin, that was about his head, not lying with the linen clothes, but wrapped together in a place by itself. (John 20:7)).