aug·ment

[v. awg-ment; n. awg-ment]
verb (used with object)
1.
to make larger; enlarge in size, number, strength, or extent; increase: His salary is augmented by a small inheritance.
2.
Music.
a.
to raise (the upper note of an interval or chord) by a half step.
b.
to double the note values of (a theme): In the fugue's development the subject is augmented.
3.
Grammar. to add an augment to.
4.
Heraldry. to grant an augmentation to (a coat of arms).
verb (used without object)
5.
to become larger.
00:10
Augment is a TOEFL word you need to know.
So is invasive. Does it mean:
the world or universe regarded as an orderly, harmonious system
characterized by or involving intrusion
noun
6.
Grammar. a prefixed vowel or a lengthening of the initial vowel that characterizes certain forms in the nonpresent inflection of verbs in Greek, Sanskrit, Armenian, and Phrygian.

Origin:
1375–1425; late Middle English au(g)menten < Anglo-French, Middle French au(g)menter < Late Latin augmentāre to increase, derivative of augmentum an increase (aug(ēre) to increase (akin to eke) + -mentum -ment) + -ā- thematic vowel + -re infinitive ending

aug·ment·a·ble, adjective
un·aug·ment·a·ble, adjective
un·aug·ment·ed, adjective


1. swell. See increase. 5. increase.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
augment
 
vb
1.  to make or become greater in number, amount, strength, etc; increase
2.  (tr) music Compare diminish to increase (a major or perfect interval) by a semitone
3.  (tr) (in Greek and Sanskrit grammar) to prefix a vowel or diphthong to (a verb) to form a past tense
 
n
4.  (in Greek and Sanskrit grammar) a vowel or diphthong prefixed to a verb to form a past tense
 
[C15: from Late Latin augmentāre to increase, from augmentum growth, from Latin augēre to increase]
 
aug'mentable
 
adj
 
aug'mentor
 
n
 
aug'menter
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

augment
c.1400, from O.Fr. augmenter (14c.), from L.L. augmentare "to increase," from L. augmentum "an increase," from augere "to increase, make big, enlarge, enrich," from PIE base *aug- "to increase" (cf. Skt. ojas- "strength;" Lith. augu "to grow," aukstas "high, of superior rank;" Gk. auxo "increase," auxein
"to increase;" Goth. aukan "to grow, increase;" O.E. eacien "to increase").
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Recycled heat from steam turbines could be used to maintain and augment solar
  heating and increase efficiency.
When state or local business regulations are enforced, the fines augment the
  treasury.
He notes that each state has its own supply, which the feds will augment if
  necessary.
Fraser will focus on working with field personnel to augment the merchandising
  and sales of book-related products.
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