"Backward" has no prefix.
"back" is not a prefix because the word "ward" isn't related to the word "backward".
to ward off a predator, for example, is not related to the word backward.
neither is the noun "ward", as in a hospital ward.
Additionally, although "ward" appears at the end of "backward" and "forward", it is not a suffix. This is because, if taken away from the word forward, we are left with "for", which is itself not related to the word "forward". Unless it is related to the "fore" of a ship, perhaps?
The prefix for locate is "relocate".
Precaution
For a Quick Chart about English Language prefixes and their meanings see the related link.
The word duplicitous has no prefixes. It has the root duplex, meaning "twofold" or "double," and the suffix -itous.
No, the additional prefixes are redundant and add nothing to the meaning.
Some prefixes for the word "roll" include re-, un-, and over-.
non-essential, inessential, unessential
Di-, Bi-
Some prefixes for "accurate" are: in-, mis-, un-. These prefixes can change the meaning of the word to inaccurate, inaccurate, and inaccurate, respectively.
Greek prefixes for numbersmonoditritetrapentahexaheptaoctaenneadecaWhat_are_the_different_Greek_prefixes
Some common prefixes related to art are "neo-" (meaning new or recent), "multi-" (meaning many or multiple), and "macro-" (meaning large or long). These prefixes are used to modify and describe different styles, movements, or aspects of art.
Some common prefixes used with the word "hypervise" are "hyper-" meaning over or beyond, and "super-" meaning above or beyond. These prefixes are used to indicate a higher level of supervision or control in a virtualized environment.
Some common prefixes that create antonyms are "un-", "dis-", "in-", "im-", "non-", and "a-". Adding these prefixes to words can change their meaning to the opposite.
inpolite
Some prefixes that can be added to "behave" are mis-, dis-, and un-. These prefixes can change the meaning of the word to misbehave, disbehave, and behave respectively.
English is confusing!
Some prefixes that go with the word "form" are mis-, trans-, de-, re-, and pre-. These prefixes can change the meaning of the word and create new words such as misform, transform, deform, reform, and preform.