LONDON — We have a new verb, “to Goldstone.” Its meaning: To make a finding, and then partially retract it for uncertain motive. Etymology: the strange actions of a respected South African Jewish jurist under intense pressure from Israel, the U.S. Congress and world Jewish groups.

Richard Goldstone is an author of the “Goldstone Report,” an investigation of Israel’s military campaign in Gaza between December 2008 and January 2009. It found that Israel had engaged in a “deliberately disproportionate attack designed to punish, humiliate and terrorize a civilian population,” for which responsibility lay “in the first place with those who designed, planned, ordered and oversaw the operations.” It said both Israel and Hamas may have committed crimes against humanity in a conflict that saw a ratio of about 100 Palestinian dead (including many children) for every one Israeli.

Now Goldstone’s volte-face appears in the form of a Washington Post op-ed. It’s a bizarre effort. He says his report would have been different “if I had known then what I know now.” The core difference the judge identifies is that he’s now convinced Gaza “civilians were not intentionally targeted as a matter of policy.”

His shift is attributed to the findings of a follow-up report by a U.N. committee of independent experts chaired by Mary McGowan Davis, a former New York judge, and what is “recognized” therein about Israeli military investigations. Well, Goldstone and I have not been reading the same report.