Lewis & Short

1. per-cōlo, āvi, ātum, 1, v. a., to strain through, to filter, percolate.

  1. I. Lit.: tum vinum percolato, polentam abicito, Cato, R. R. 108; Cels. 6, 9; Col. 12, 41, 2; Plin. 31, 6, 37, § 70.
  2. II. Transf., in gen., to cause to pass through: umor per terras percolatur, passes through, Lucr. 2, 475: cibos et potiones, to pass through one, i. e. to swallow and digest, Sen. Q. N. praef. § 3: terra bibula crebros imbros percolat atque transmittit, Plin. 18, 11, 29, § 110.