INARCH Meaning of INARCH in English /in ahrch"/ , v.t. Hort.to graft by uniting a growing branch to a stock without separating the branch from its parent stock. [ 1620-30; IN- 2 + ARCH 1 ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012