the origins of the word "christian"

I have often mistakenly thought King Agrippa was paying Paul sort of a compliment in the passage below. I thought Agrippa was saying or implying that Paul had preached to him so eloquently, so persuasively, that Agrippa was sitting on the fence between doubt and belief.  But looking further into the passage and the etymology  of the word "Christian" has convinced me otherwise.

Acts 26:28
Then Agrippa said unto Paul, Almost thou persuadest me to be a Christian.


What does Christian mean?
EcretinPronunciation /ˈkrētn/ /ˈkritn/ Translate cretin into Spanish
NOUN

• 1offensive A stupid person (used as a general term of abuse).
  Synonyms
• 2Medicine
  dated A person who is physically deformed and has a mental disability because of congenital thyroid deficiency.
  
  Under other etymology search sites, the words "Cretian, Crestian, Cretin, being "Christian"
  1 often offensive : one afflicted with cretinism. 2 informal : a stupid, vulgar, or insensitive person : clod, lout …
  
  

OriginLate 18th century from French crétin, from Swiss French crestin ‘Christian’ (from Latin Christianus), here used to mean ‘human being’, apparently as a reminder that, though deformed, cretins were human and not beasts.
But what does the Bible say about these Cretians?

Titus 1
12One of themselves, even a prophet of their own, said, The Cretians are alway liars, evil beasts, slow bellies. 13This witness is true. Wherefore rebuke them sharply, that they may be sound in the faith;

WAIT!  Before anyone becomes offended remember, the wisdom of this world is foolishness to G-d, and the wisdom of G-d is foolishness to this world.
So, although it seems to turn out the term "Christian" was meant in a derogatory way, those who obey the gospel , although looked upon by the world as idiots, ought not be ashamed for their faith and obedience .

1 Peter 4:15-17
But let none of you suffer as a murderer, or as a thief, or as an evildoer, or as a busybody in other men's matters.
16 Yet if any man suffer as a Christian, let him not be ashamed; but let him glorify God on this behalf.
17 For the time is come that judgment must begin at the house of God: and if it first begin at us, what shall the end be of them that obey not the gospel of God?

Although the Cretians were often seen as evildoers, Peter in the above scripture is telling the believers to not suffer as a person who is an evildoer, but if you are to suffer as a Christian, or someone thought of as an (idiot/fool), don't be ashamed.

1 Peter 2:12
Having your conversation honest among the Gentiles: that, whereas they speak against you as evildoers, they may by your good works, which they shall behold, glorify God in the day of visitation.

No wonder the Apostle Paul said these things-

1. 1 Corinthians 3:18Let no man deceive himself. If any man among you seemeth to be wise in this world, let him become a fool, that he may be wise.
2. 2 Corinthians 11:21I speak as concerning reproach, as though we had been weak. Howbeit whereinsoever any is bold, (I speak foolishly,) I am bold also.
3. 2 Corinthians 11:23Are they ministers of Christ? (I speak as a fool) I am more; in labours more abundant, in stripes above measure, in prisons more frequent, in deaths oft.
4. 2 Corinthians 12:11I am become a fool in glorying; ye have compelled me: for I ought to have been commended of you: for in nothing am I behind the very chiefest apostles, though I be nothing

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