pre-, prae-
(Latin: before [both in time and place])
The prefix prae- can actually be substituted for pre- because both of them are different spellings for the same prefix meaning "before".
prefatory
Serving to introduce something else; such as, a main body of text or a speech.
prefect
prefer
preferable
preference
prefix
1. To put or attach something before or in front of.
2. To settle or to arrange in advance.
3. In grammar and vocabulary: to add as a prefix or to add a prefix to a word.
4. An affix, such as dis- in disbelieve, attached to the front of a word to produce a derivative word or an inflected form.
5. A title placed in front of a person's name.
preflight
prefulgency
Superior brightness or effulgency.
pregnancy
pregnant
prehensibility
prehensible
prehensile
prehension
pre-hexameral
Before the Creation.
Related before-word units:
ante-;
antero-;
anti-;
pro-.
Related "time" units:
aevum, evum;
archaeo-, archeo-;
Calendars;
chrono-;
horo-;
Quotes: Time;
tempo-.