to create (an effect) at a distance, as by electromagnetic waves, compression waves, etc., traveling through space or a physical medium; transmit: to propagate sound.
Origin: 1560–70; < Latin propāgātus (past participle of propāgāre to reproduce (a plant) by cuttings, spread for sprouting, propagate, enlarge), equivalent to propāg(ēs) something set out, scion, slip (pro-pro-1 + pāg-, base of pangere to fasten + -ēs noun suffix) + -ātus-ate1