A private lane, or one opening out of the usual road.(noun)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "by-lane" in a sentence
"They found a clinic hidden deep in a dead-ending by-lane and waited for the doctor to call them."
"He said that prior to the independence Ladakh region was an important by-lane of fabled silk route which contributed greatly to the economy of the region."
"And when she knew that he had nothing, she said to him, “Take me by the hand and carry me aside into a by-lane, as if thou wouldst examine me privily.”"