Definition of "pleached"

Would'ſt thou be window'd in great Rome, and ſee / Thy Maſter thus with pleacht Armes, bending downe / His corrigible necke, his face ſubdu'de / To penetratiue ſhame; [...]Would you be looking through a window in great Rome, and see / Your Master thus, with entwined arms [tied together], bending down / His docile neck, his face subdued / with shame penetrating through [i.e. blushing]; [...]

c. 1606–1607, William Shakespeare, “The Tragedie of Anthonie and Cleopatra”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act IV, scene xiv], page 362, column 2

[T]he prince and Count Claudio, walking in a thicke pleached alley in mine orchard, were thus much ouer-heard by a man of mine: [...]

1598–1599 (first performance), William Shakespeare, Much Adoe about Nothing. […], quarto edition, London: […] V[alentine] S[immes] for Andrew Wise, and William Aspley, published 1600, [Act I, scene ii]

I, in my pleached garden, watched the pomp.

1857, Ralph Waldo Emerson, Days

The garden ended in [...] pleached fruit trees.

2019, Ian McEwan, Machines Like Me, Jonathan Cape, page 229