The longest words in English

Which is the longest word in English. Have you ever started searching them. Here is a list of such words....Isn't it a fun? ... There are two words which has struck the news head lines recently. Shashi Tharoor has popularized them . Do you know what those words are. They are 'floccinaucinihilipilification'  and 'hippopotomonstrosesquippedaliophobia' 

'floccinaucinihilipilification' is perhaps the longest non scientific word in English language. It comes from four Latin words: 'flocci', 'nauci', 'nihili' and 'pili'. It means 'at little value'.  to this the English suffix 'fication' is added. It originated in the mid 18th century. It means ' the action or habit of estimating something as worthless. This word is first used by an 18th century English poet William Shenstone. He has used it in a letter and his words read: "I loved him for nothing so much as his flocci-nauci-nihili-pili-fication of money." It is pronounced

 /ˌflɒksɪˌnɔːsɪˌnɪhɪlɪˌpɪlɪfɪˈkeɪʃ(ə)n/

'hippopotomonstrosesquippedaliophobia'  is the fear of longer words. Isn't it an irony? 'sesquipedalophobia' is a Latin word which means fear of long words. The Latin word 'Sesquipedalian' means one and a half feet long. Horace, the Roman poet known for his satire, was merely being gently ironic when he cautioned young poets against using "sesquipedalia verba" - words a foot and a half long - in his book Ars Poetica , a collection of maxims about writing. The longest words are usually referred as 'sesquipedalian'. 

Have you ever come across the longest English word 'pneumonoultramicroscopicsilicovolcanoconiosis'.

The word has 45 letters. It is a lung disease caused by inhaling very fine ash and sand dust especially from a volcanic eruption. It is pronounced 

/ˌnjuːmə(ʊ)nəʊˌʌltrəˌmʌɪkrə(ʊ)ˈskɒpɪkˌsɪlɪkəʊvɒlˌkeɪnəʊˌkəʊnɪˈəʊsɪs/