What is "trippings"

Usage examples of "trippings".

The frightened nov­ices were the first to leave, cowls over their faces, heads bowed, without exchanging the remarks, the nudges, the flashing smiles, the sly and concealed trippings with which they usually provoked one another (for novices, though young monks, are still boys, and the reproaches of their master are of little avail in preventing them all from behaving like boys, as their tender age demands).