each other

toisensa puhekieltä To one another; one to the other; signifies that a verb applies to two or more entities both as subjects and as direct objects:

(ux)

There is an hour or two, after the passengers have embarked, which is disquieting and fussy.(..)Passengers wander restlessly about or hurry, with futile energy, from place to place. Pushing men hustle each other at the windows of the purser's office, under pretence of expecting letters or despatching telegrams.