Leaven [verb]

Then they began to talk among themselves: what had they done to be thus bidden to beware of the leaven of the Pharisees?

On these few occasions indeed it would even appear to be tinctured with some slight leaven of good-nature.

In a word, superstition is a dangerous leaven, that is fitted to corrupt even the most honest hearts.

The knowledge that before long he would take unto himself a wife was a leaven that leavened every thought and every act.

Even Canada, with its leaven of Orangemen, was to be honoured with the speeches of an orator of second-rate powers.

And have not all of them just needed the caution themselves to beware of the leaven of the Pharisees and Sadducees?

This ferment in the political ideas of the Americans was started by English leaven.

One by one these were admitted within that charmed circle, whose motto for ages had been "No Trade," to leaven it with their gold.

A minority they must inevitably remain until after the social revolution; but a little leaven can leaven a large lump.

However, he did not deny that this examination concerning ourselves might be an element of progress, a leaven of morality.