Also 7 fillar, 9 viller. [f. FILL sb.2 + -ER1.] A thill- or shaft-horse. Also attrib., as filler-horse.
1695. Kennett, Par. Antiq., Gloss., s.v. Pullanus, The horse which goes in the rods is commo[n]ly called the fillar.
1852. C. W. H[oskins], Talpa, 3. Just as the filler-horse was congratulating himself that it was all plain sailing now.
1888. Berksh. Gloss., Viller.
