Learn how to say Errantry correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word errant:
1 formal or humorous erring or straying from the accepted course or standards:
an errant husband coming back from a night on the tiles
not in the right place; having moved from the correct position or course:
an errant strand of hair
fear of being hit by an errant bullet
2 [often postpositive] archaic or literary travelling in search of adventure:
that same lady errant
See also knight errant.
3 Zoology (of a polychaete worm) of a predatory kind that moves about actively and is not confined to a tube or burrow.