Synonyms for Daub:

n.

aquatint, doodle, bas relief, collage, diptych, canvas, caricature, cartoon, abstract. aggregate, board, bitumen, brownstone, bedaub, put on, brick, dab, adobe, caulk, asbestos, boarding, besmear, cement. wrap, cover, crown, recover, smother, top, coat, blanket, insulate, bury. a little, taster, trace, piece, sample, fraction, fragment, hint, a bit. daub (noun)
slur, spot, blot, smudge, smirch, smear.
smear (noun)
dab, paint, varnish, spread.

v.

coat; make dirty (verb)
varnish, paint, smear, smudge, spot, spread, dab, besmear, smirch, cover.
contact (verb)
smear.

Other synonyms:

canvas, caricature, cartoon, collage, diptych, bas relief, besmear, doodle. aquatint, dab, bedaub. spread. abstract.