1941 5 Nov. 2/2 Mr. Burton had worked this colt and had it green broke.
1961 1 Nov. c5/1 Purchasing near-wild Indian ponies from a nearby reservation and then ‘green breaking’ them for a quick sale at small profit.
1982 7 Dec. (San Diego County Business section) d/4 Earls also supplements his income by ‘green-breaking’ new horses at the stables.
2004 D. Stevens xi. 61 I always ‘green broke’ the colts... Being younger and the boss, I figured it was my responsibility to get them started in their training.