rds is formed. Thus the Latin verb _du'cere_, to
draw or lead, is a Latin primitive or root, and from it are formed _educe_,
_education_, _deduction_, _ductile_, _reproductive_, and several hundred
other English words.

2. LATIN ROOTS consist chiefly of verbs, nouns, and adjectives.

3. ENGLISH DERIVATIVES from Latin words are generally formed not from the
root itself but from a part of the root called the _radical_. Thus, in the
word "education," the _root-word_ is _ducere_, but the _radical_ is DUC-
(education = e + DUC + ate + ion).

4. A RADICAL is a word or a part of a word used in forming English
derivatives.

5. Sometimes several radicals from the same root-word are used, the
different radicals being taken from different grammatical forms of the
root-word.

6. VERB-RADICALS are formed principally from two parts of the verb,--the
first person singular of the present indicative, and a part called the
_supine_, which is a verbal noun corresponding to the English infinitive in
-ing. Thus:--

_1st pers. sing. pres. ind._ duco (I draw)
_Root_ DUC-
_Derivative_ _educe_
_Supine_ ductum (drawing, or to draw)
_Root_ DUCT-
_Derivative_ _ductile_

I. In giving a Latin verb-primitive in this book three "principal parts" of
the verb will be given, namely: (1) The present infinitive, (2) the first
person singular of the present indicative, and (3) the supine--the second
and the third parts because from them radicals are obtained, and the
infinitive because this is the part used in naming a verb in a general way.
Thus as we say that _loved_, _loving_, etc., are parts of the verb "to
love," so we say that _a'mo_ (present ind.) and _ama'tum_ (supine) are
parts of the verb _ama're_.

II. It should be noted that it is incorrect to translate _amo_, _amatum_,
by "to love," since neither of these words is in the infinitive mood, which
is _amare_. The indication of the Latin infinitive will be found of great
utility, as it is the part by which a Latin verb is referred to in the
Dictionary.

7. NOUN-RADICALS and ADJECTIVE RADICALS are formed from the nominative and
from the genitive (or possessive) case of words belonging to these parts of
speech. Thus:--

NOM. CASE. ROOT. DERIVATIVE.
iter (a journey) ITER-. re_iter_ate

GEN. CASE.