v.intr.: (of → electromagnetic waves,
→ compression waves, etc.) To travel
through space or a physical → medium.
v.tr.: To create (an effect) at a distance, as by electromagnetic
waves, compression waves, etc., traveling through space or a physical
medium.
Etymology (EN): From L. propagatus, p.p. of propagare “multiply plants
by layers, spread for sprouting, propagate, enlarge,”
from propag(es) “something set out, scion, slip,” from
→ pro- “forth” + pag base
of pangere “to fasten” + es noun suffix + -atus
“-ate.”
Etymology (PE): Tucidan, from several dialects: Malayeri
“to scatter, disperse; to diffuse;”
Lori tic “scattered, dispersed,” ticene “to scatter, disperse;
to diffuse;” Laki tvic “dispersed, scattered;” Aligudarzi tij
“scattered, dispersed;” Borujerdi tuc “scatter,”
tucessan “to scatter, diffuse,” tucesa “dispersed,
scattered, diffused;”
probably related to Proto-Ir. θrāš-
“to scatter, spread, strew”
cf. Yaghnobi côš-
“to spread, scatter, sow,”
tiráš-, têráš-, tirayš-/tirášta
“to fall (down, off); to become ill; to drop;” (+*ui- ?) Ossetic .I.
irtasyn/irtæst, D. ærtasun/ærtast
“to separate, distinguish; to take away; to choose;”
Sogd. š’š “to scatter, disperse;”
šyš- “to be scattered”
(Cheung, 2007)
