Since she would not or could not say the one word that would have cleared the air, his wish was not to let her feel that he was trying to probe into her secret.
As he came out into the lobby Archer ran across his friend Ned Winsett, the only one among what Janey called his "clever people" with whom he cared to probe into things a little deeper than the average level of club and chop-house banter.
If he had probed to the bottom of his vanity (as he sometimes nearly did) he would have found there the wish that his wife should be as worldly-wise and as eager to please as the married lady whose charms had held his fancy through two mildly agitated years; without, of course, any hint of the frailty which had so nearly marred that unhappy being’s life, and had disarranged his own plans for a whole winter.
There are no more uses of "probe" in the book.
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There was a congressional probe into the scandal.
She probed beneath the gum line as she examined his teeth.