5.  CON,—­which forms com, co, col, cor,—­means Together:  as, con-tract, to draw together; compel, to drive together; co-erce, to force together; col-lect, to gather together; cor-rade, to rub or scrape together; con-junction, a joining-together.

6.  CONTRA, or CONTRO, means Against, or Counter:  as, contra-dict, to speak against; contra-vene, to come against; contra-mure, countermure; contro-vert, to turn against.

7.  DE means Of, From, or Down:  as, de-note, to be a sign of; de-tract, to draw from; de-pend, to hang down; de-press, to press down; de-crease, to grow down, to grow less.

8.  DIS, or DI, means Away, or Apart:  as, dis-pel, to drive away; dis-sect, to cut apart; di-vert, to turn away.

9.  E, or Ex,—­making also ec, ef,—­means Out:  as, e-ject, to cast out; e-lect, to choose out; ex-clude, to shut out; ex-cite, to summon out; ec-stacy, a raising out; ef-face, to blot out.

10.  EXTRA means Beyond, or Out of:  as, extra-vagant, syllabled ex-trav’a-gant, roving be-yond; extra-vasate, ex-trav’a-sate, to flow out of the vessels; extra-territorial, being out of the territory.

11.  IN,—­which makes also il, im, ir,—­means In, Into, or Upon:  as, in-spire, to breathe in; il-lude, to draw in by deceit; im-mure, to wall in; ir-ruption, a rushing in; in-spect, to look into; in-scribe, to write upon; in-sult, to jump upon.  These syllables, prefixed, to English nouns or adjectives, generally reverse their meaning; as in in-justice, il-legality, im-partiality, ir-religion, ir-rational, in-secure, in-sane.

12.  INTER means Between, or In between:  as, inter-sperse, to scatter in between; inter-jection, something thrown in between; inter-jacent, lying between; inter-communication, communication between.

13.  INTRO means In, Inwards, or Within:  as, intro-duce, to lead in; intro-vert, to turn inwards; intro-spect, to look within; intro-mission, a sending-in.

14.  OB,—­which makes also oc, of, op,—­means Against:  as, ob-trude, to thrust against; oc-cur, to run against; of-fer, to bring against; op-pose, to place against; ob-ject, to cast against.

15.  PER means Through or By:  as, per-vade, to go through; per-chance, by chance; per-cent, by the hundred; per-plex, to tangle through, or to entangle thoroughly.

16.  POST means After:  as, post-pone, to place after; post-date, to date after.

17.  PRAE, or PRE, means Before:  as, pre-sume, to take before; pre-position, a placing-before, or thing placed before; prae-cognita, things known before.