Pro is a Latin preposition signifying for, before, and forth; uni (Latin
unus, one) signifies one or producing one; syn (sometimes syl and sym)
signifies together; and sub (sometimes suf, sup, and sug) denotes under,
below.
pro’noun u’ni ty syn’the sis sub scribe’
pro pel’ u’ni form syl’la ble suf’fix
pro duce’ u’ni corn sym’pa thy sup press’
pro vide’ u’ni val ve syn tac’tic sug gest’
