pa.sah describes a plague or mark extending outward in skin, garments, or houses.

The attested use describes the observable outward extension of a plague, scab, or bright spot: in skin, through a garment or leather article, and in the walls or interior of a house. Its presence or absence is repeatedly part of a priestly inspection and resulting judgment.

1. Extend outward through an affected area · dominant

   The Qal perfect forms mark whether a plague or scab has extended in the skin: in Leviticus 13:5 the APB renders the plague as not having "spread in the skin," while Leviticus 13:36 renders the scab as having "spread in the skin." The same observed extension concerns a plague in a garment or skin article in Leviticus 13:51 and a plague in a house in Leviticus 14:44. The supplied Qal infinitive-absolute forms occur in conditional inspection clauses such as Leviticus 13:22, where the APB renders the condition, "If it spreads in the skin."

   Leviticus 13:5Leviticus 13:22Leviticus 13:36Leviticus 13:51Leviticus 14:39Leviticus 14:44

In the Anselm Project Bible: Across these inspection clauses, the APB commonly presents the condition with “spreads,” “has spread,” or “has not spread,” including skin, garments, and houses. In Leviticus 13:55 it also uses “a spreading”; These renderings reflect the clauses' overall presentation rather than a fixed English equivalent.