(pər·pend′) v.t. & v.i. Obs.
To ponder; consider. [<L perpendere <per- thoroughly + pendere weigh]

(pûr′pənd) noun
In masonry, a stone header extending through a wall so that one end appears on each side of it. Also perpend stone, per′pent (-pənt). [Var. of parpen <OF parpain,? <par- through (<L per-) + pan (de mur) a side (of a wall); infl. in form by PEND]
PERPEND