1.The history of English in ten minutes

https://www.youtube.com/watch?v=SfKhlJIAhew 

The sun never sets on the English language

English: absorb, evolve, invade and steal

2.World of English

William Caxton : publisher

Samuel Johnson : lexicographer( person whose job is writing  dictionary)

Xerox: A copy of a written document or image that is made with a Xerox machine.

Kleenex: A small paper handkerchief

3. Boomerang

definition : a curved stick that comes back to you when you throw it. It was traditionally used by Australian Aboriginals for hunting.

4.TB

Tuberculosis (TB) is an infectious disease caused by the bacterium Mycobacterium tuberculosis (MTB). Tuberculosis generally affects the lungs, but can also affect other parts of the body. Most infections do not have symptoms, known as latent tuberculosis. About 10% of latent infections progress to active disease which, if left untreated, kills about half of those infected. The classic symptoms of active TB are a chronic cough with blood-containing sputum, fever, night sweats, and weight loss. The historical term "consumption" came about due to the weight loss. Infection of other organs can cause a wide range of symptoms.

5. Syllable

-tive ---------- (n.) or (adj.)

de- : active word-forming element in English and in many words inherited from French and Latin, from Latin de "down, down from, from, off; concerning" (see de), also used as a prefix in Latin usually meaning "down, off, away, from among, down from," but also "down to the bottom, totally" hence "completely" (intensive or completive), which is its sense in many English words. As a Latin prefix it also had the function of undoing or reversing a verb's action, and hence it came to be used as a pure privative -- "not, do the opposite of, undo" -- which is its primary function as a living prefix in English, as in defrost (1895), defuse (1943), etc.

ex:

demulcent, detergent, deplore

di- : (1)word-forming element meaning "two, double, twice," from Greek di-, from dis "twice," related to duo (see two).(2)word-forming element meaning "apart, asunder," form of dis- before certain voiced consonants.(3) word-forming element meaning "through; thoroughly," form of dia- before vowels.

ex: 

diameter, digraph, dimity, digamist

hydr: water

ex:

hydrate, hydrant, hydrophobia