Lanch

[…] difficult to cultivate, on account of the outcrop thereon of a large bed of flints called locally a 'lanch' or 'lanchet.'

And gainſt the General we will lift our ſwords And either lanch his greedie thirſting throat, Or take him priſoner, and his chaine ſhall ſerue For Manackles, till he be ranſom’d home.