As adjectives the difference between reddish and bayard
is that reddish is somewhat red while bayard is coloured bay, reddish brown, notably said of equines.
As a noun bayard is
a bay horse.
bayard
English
Noun
(
en noun)
A bay horse
(humorous) Any horse
(archaic) A stupid, clownish fellow.
Adjective
(
en adjective)
coloured bay, reddish brown, notably said of equines
Synonyms
* foxy