Arm in arm

The two friends walked along arm in arm.

Buckingham, doth York intend no harm to us, That thus he marcheth with thee arm in arm?

[…] Laurie came running down stairs, and brought up with a start of surprise at the sight of Jo arm in arm with his redoubtable grandfather.

Foy had prepped his troops for a boisterous chorus of “We Shall Overcome.” They were joined together arm-in-arm, swaying and humming slowly to the beat.

‘Frenchmen. Really, I mean to say, Stevens, Frenchmen. […] And to think we have to be seen by the world to be arm in arm with them. One wishes for a good bath at the mere reminder.’