What did Sir Henry cry out when he saw the stranger?

Sir Henry, Good, and Quatermain have finally made their way out of the labyrinthine hellhole which they thought for certain would be their tomb. It was a long, hard struggle, but they've managed to escape at long last. They crawl out of the hole into the night, and after the ground beneath them subsides, they find themselves in the pit where the diamonds were extracted. After hauling themselves up out of the pit, they see a fire burning in front of some huts a hundred yards away. There are five figures standing round the fire. One of them sees the three men approaching and falls to his knees in fear. But Sir Henry immediately reassures the man that they mean no harm:

“Infadoos, Infadoos! it is we, thy friends.”

The stranger turns out to be none other than Infadoos, the Kukuana sub-chieftain. Once he recognizes the men, he falls to his knees and, grasping Sir Henry's knees, cries out for joy.