Webster's Revised Unabridged Dictionary · 1913

Overcast

Overcast (ō`vẽr*kȧst") , transitive verb

1.
To cast or cover over; hence, to cloud; to darken.
Those clouds that overcast your morn shall fly. — Dryden
2.
To compute or rate too high. — Bacon
3.
(Sewing) To take long, loose stitches over (the raw edges of a seam) to prevent raveling.
4.
(Bookbinding) To fasten, as single sheets, by overcast stitching or by folding one edge over another.

overcast , adjective

1.
(Meteorology) Completely or almost completely covered over with clouds; -- of the sky.
2.
(Sewing) Sewn by overcasting.