pur-

From Middle English pur-, from Anglo-Norman pur- (compare modern French pour), from Latin prō- (“forward direction, forward movement”). Doublet of pro-.

pur-

1. In words borrowed through Anglo-Norman: involving forward movement or completeness.

   ‎pur- + ‎blind → ‎purblind

   ‎pur- + ‎chase → ‎purchase

   ‎pur- + ‎port → ‎purport

   ‎pur- + ‎sue (“(obsolete) to follow”) → ‎pursue

• Douglas Harper (2001–2024) “pur-”, in Online Etymology Dictionary.
• John A. Simpson and Edmund S. C. Weiner, editors (1989), “pur-, prefix.”, in The Oxford English Dictionary, 2nd edition, Oxford: Clarendon Press, →ISBN.

• PRU, RUP, U-RP, urp, Pru

pur-

1. Alternative form of por-

From pur (“pure”).

pur-

1. very, completely

• pur- in Svensk ordbok (SO)
• pur in Svenska Akademiens ordbok (SAOB)