Wiktionary
lie by
vb. (label en obsolete) To have sex with.
Usage examples of "lie by".
Backster had previously shown that his own house plants were capable of responding to a lie by changes in electrical activity as measured by the lie detector.
He would know she had lied to bun, that she had forced him to live a lie by put.
He would know she had lied to bun, that she had forced him to live a lie by putting him in her ex-husband's place.