Counterchange

Part of speech: noun (n.)

Exchange; reciprocation.

Part of speech: verb (v.)

1. To give and receive; to cause to change places; to exchange.

2. To checker; to diversify, as in heraldic counterchanging. See Counterchaged, a., 2. With-elms, that counterchange the floor Of this flat lawn with dusk and bright. Tennyson.