clannishly

He loved his family clannishly, and he was rejoiced that they were all again near to him.

On the street corner opposite, the Happy Family foregathered clannishly, waiting until they were called into the street-fight scene which Luck meant to make later.

That was the Welshman for you - openfaced and friendly when they spoke to you and clannishly against you behind your back.

But to abandon Orr's tent would be to abandon Orr, who would have been spurned and humiliated clannishly by these four simple-minded officers waiting to move in.