1. A hedge; an inclosed garden or yard. And eke there was a polecat in his haw. (Chaucer)
2. The fruit of the hawthorn.
Origin: oe. Hawe, as. Haga; akin to D. Haag headge, g. Hag, hecke, Icel. Hagi pasture, Sw. Hage, dan. Have garden. Cf. Haggard, Ha-ha, Haugh, hedge.
3. (Science: anatomy) The third eyelid, or nictitating membrane. See nictitating membrane, under nictitate.
Origin: Etymol. Uncertain.