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".

preacquaint (verb), preacquaints; preacquainted; preacquainting
To make it possible for someone to know or to become familiar with something or a person in advance or beforehand.
preacquaintance (s) (noun), preacquaintances (pl)
A previous knowledge of something or of someone.
preadolescence (s) (noun), preadolescences (pl)
Children who are between being babies and the ages of ten and twelve.
preadolescent (s) (noun), preadolescents (pl)
A child, or children, who are babies or still not in their teens: Sam and Mildred have two preadolescents who are in kindergarten.
preadolesent (adjective) (no comparatives)
Relating to the period of life before a child starts to develop into an adult: Pamela has two preadolescent boys who are twins.
preagonal, pre-agonal (adjective) (not comparative)
1. A reference to that which is immediately preceding death.
2. Descriptive of occurring or existing immediately before the agony of death.

Death agony is an old term for the period just before someone dies which was thought to be a time of extreme pain.

pre-agricultural (adjective) (no comparatives)
In anthropology, pre-agricultural was a period of time before a society of people had developed agriculture or raising crops as a means of subsistence.
preamble (s) (noun), preambles (pl)
1. An introductory statement; preface; introduction; literally, a walking before": The preamble to the American Constitution is meant to express a dedication to the cause of freedom and justice.
2. The introductory part of a statute, deed, or the like, stating the reasons and intent of what follows.
3. A preliminary or introductory fact or circumstance: Frank's childhood in the slums was a preamble to a life of crime.
4. Capitalized, Preamble, the introductory statement of the U.S. Constitution, setting forth the general principles of American government and beginning with the words, “We the people of the United States, in order to form a more perfect union . . . ; therefore, a section at the beginning of a speech, a report, or a formal document that introduces what follows.
5. Etymology: from Latin praeambulus, "going in front"; from Latin ambulare "to walk".
preambular (adjective), more preambular, most preambular
A reference to a short preliminary statement or remark; especially, an explanatory introduction to a formal document or statute.
preambulary (adjective), more preambulary, most preambulary
Of or pertaining to an introductory statement.
preambulate (verb), preambulates; preambulated; preambulating
To walk or to go before another person or to figuratively precede someone.
preambulation (s) (noun), preambulations (pl)
1. A preamble.
2. A walking or going before; a precedence.
preambulatory (adjective), more preambulatory, most preambulatory
Going before, preceding; a reference to being introductory.
preambulous (adjective), more preambulous, most preambulous
1. A reference to a preliminary statement, especially the introduction to a formal document that serves to explain its purpose.
2. An introductory occurrence or fact; a preliminary.
preamplifier (s) (noun), preamplifiers (pl)
An electronic circuit or device that detects and strengthens weak signals, as from a radio receiver, for subsequent, more powerful increasing stages: "A preamplifier is an amplifying circuit; as in a radio or a television and it is designed to strengthen very weak signals and then transmit them to a more powerful amplifier."

Related before-word units: ante-; antero-; anti-; pro-.

Related "time" units: aevum, evum; archaeo-, archeo-; Calendars; chrono-; horo-; Quotes: Time; tempo-.