Definition of "regarding"

Santorum, in a comment regarding Senator John McCain's repudiation of torture, stated, "He doesn't understand how enhanced interrogation works. I mean, you break somebody, and after they've broken they become cooperative" (Summers 2011).

2015 November 30, Shane O'Mara, Why Torture Doesn’t Work: The Neuroscience of Interrogation‎, Harvard University Press, page 12

[…] God Invisible by the assumption of His Manhood was laid open to the regardings of our sight.

1844, Pope Gregory I, Morals on the Book of Job

[…] to his wearied mates, seeking repose within six inches of his ivory heel, such would have been the reverberating crack and din of that bony step, that their dreams would have been of the crunching teeth of sharks. But once, the mood was on him too deep for common regardings; and as with heavy, lumber-like pace he was measuring the ship from taffrail to mainmast, Stubb, the odd second mate, came up from below […]

1851 November 14, Herman Melville, Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley