R
re- back, again
readmit (verb): to allow in again
re + ad + mit
retro- backward
retrospect (noun) to look back at past events
retro + spect




S
se- apart, move away from
secede (verb): to withdraw from an organization
se + cede
semi- half
semiannual (adjective): occurring twice a year
semi + annu + al
sub-, suc-, suf-, sup-, sur-, sus under, beneath, near, from below, secretly, above, up
submarine (adjective): underwater
sub + mar + ine
succeed (verb): to do well, to come after
suc + ceed
suffice (verb): to be enough
suf + fice
support (verb): to hold up, too keep up
sup + port
survive (verb): to live, to live through something, to exist
sur + vive
sustain (verb): to keep up, to hold up,
sus + tain
super- over, above
superimpose (verb): to place something on top of something else
super + im + pose
syn-, sym- together, at the same time
synchronous (adjective): happening at the same time
syn + chron + ous
sympathy (noun): sharing another person's feelings, compassion
sym + path + y




T
trans- across, beyond, change
transform (verb): to change shape
trans + form
tri- three
tripod (noun): a three-legged stand
tri + pod




U
un- not, against, opposite
unceasing (adjective): never ending, continuous
un + ceas + ing
uni- one
uniform (adjective): having the same form or consistency
uni + form


ALINTI.