From The Collaborative International Dictionary of English v.0.48:
Brow \Brow\, v. t.
To bound to limit; to be at, or form, the edge of. [R.]
[1913 Webster]
Tending my flocks hard by i' the hilly crofts
That brow this bottom glade. --Milton.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Brow \Brow\ (brou), n. [OE. browe, bruwe, AS. br[=u]; akin to
AS. br[=ae]w, bre['a]w, eyelid, OFries. br[=e], D. braauw,
Icel. br[=a], br[=u]n, OHG. pr[=a]wa, G. braue, OSlav.
br[u^]v[i^], Russ. brove, Ir. brai, Ir. & Gael. abhra, Armor.
abrant, Gr. 'ofry`s, Skr. bhr[=u]. Cf. Bray a bank,
Bridge.]
1. The prominent ridge over the eye, with the hair that
covers it, forming an arch above the orbit.
[1913 Webster]
And his arched brow, pulled o'er his eyes,
With solemn proof proclaims him wise. --Churchill.
[1913 Webster]
2. The hair that covers the brow (ridge over the eyes); the
eyebrow.
[1913 Webster]
'T is not your inky brows, your brack silk hair.
--Shak.
[1913 Webster]
3. The forehead; as, a feverish brow.
[1913 Webster]
Beads of sweat have stood upon thy brow. --Shak.
[1913 Webster]
4. The general air of the countenance.
[1913 Webster]
To whom thus Satan with contemptuous brow. --Milton.
[1913 Webster]
He told them with a masterly brow. --Milton.
[1913 Webster]
5. The edge or projecting upper part of a steep place; as,
the brow of a precipice; the brow of a hill.
[1913 Webster]
To bend the brow, To knit the brows, to frown; to scowl.
[1913 Webster]