Green’s Dictionary of Slang

prad n.

also praddle, pred
[Du. paard, a horse; ult. Lat. paraveredus, which gives the SE palfrey, a riding horse as opposed to a war-horse]

1. [18C–1930s] (20C use Aus./N.Z. only) a horse.

2. attrib. use of sense 1.

In compounds

prad borrower (n.)

[late 18C] (UK Und.) one who steals a horse, but (sometimes) returns him.

prad cove (n.) [cove n. (1)]

[mid-19C] (UK Und.) a horse dealer.

pradholder (n.)

[early 19C] a bridle.

prad lay (n.) [lay n.3 (1)]

[18C–mid-19C] the stealing of bags from horses.

prad layer (n.)

[18C] one who steals baggage from horses, taking advantage of the darkness to cut the bindings.

prad-napper (n.) (also pred-napper) [nap v.1 (2)]

[late 18C] a horse-thief.

prad-napping (n.) (also pred-napping)

[19C] horse-stealing.

prad’s backman (n.)

[mid-19C] a horse-rider.