Definition of "lanch"

lanch¹

noun
plural lanches
1. (UK, dialect) A large bed of flints.
  Quotations
  […] difficult to cultivate, on account of the outcrop thereon of a large bed of flintscalled locally a 'lanch' or 'lanchet.'
  1871, Thomas Hardy, Desperate Remedies

lanch²

verb
third-person singular simple present lanches, present participle lanching, simple past and past participle lanched
1. (obsolete) To pierce, as with a lance; to lance.
  Quotations
  And gainſt the General we will lift our ſwordsAnd either lanch his greedie thirſting throat,Or take him priſoner, and his chaine ſhall ſerueFor Manackles, till he be ranſom’d home.
  c. 1587–1588, [Christopher Marlowe], Tamburlaine the Great. […] The First Part […], 2nd edition, part 1, London: […] [R. Robinson for] Richard Iones, […], published 1592; reprinted as Tamburlaine the Great (A Scolar Press Facsimile), Menston, Yorkshire, London: Scolar Press, 1973, (please specify the page)
2. (obsolete) To throw, as a lance; to let fly; to launch.