Webster's Revised Unabridged Dictionary · 1913

Planch

Planch , noun

[French planche.]

A plank. [Obsolete] — Ld. Berners

Planch , transitive verb

[French planche a board, plank. See Plank.]

To make or cover with planks or boards; to plank. [Obsolete]
To that vineyard is a planched gate. — Shakespeare