Translation from latin to english

The coat of arms of which family? Please give name and location if possible. Please check spelling of "intissimus". Were you reading it from an old picture or engraving? I think you may have that word wrongly spelled, because "intissimus" is not a Latin word that I have ever heard of. I cannot find it in any of my dictionaries either.

However, the following is a well known Latin saying from the writings of Ovid:

In medio tutissimus ibis

"In the middle of things you will go most safe", or "you will travel safest in a middle course".

That is, it is safest to choose a middle way, the safest way through life is to avoid extremes.

Please tell me if I am right or not.

INTISSIMUS.... Latin or not?.... If not then what?.....
In response to translation need : Coat of Arms, Origin, England

Thank you for your time and help!! The Family Name Is: Sumner
I have double checked the spelling of Intissimus; was taken from banner below the shield... Brief discription: Silver lions head sitting on silver and gold septer with gold crown around the neck. Silver shield with two gold chevrons with other sign not yet understood. Upon futher inspection inside back of frame three silver coins found dating from early 17hundreds also written prayer, known and still used by older family members. family known to come from Salisbury plains area. All this is cool but what is Intissimus?....A mispelled worddd or whatt?...Celtic I'm guessing now? !@#$%^&*( Anyone can guess! but to know.......It's Good To Be The King !

It looks pretty clear to me... (Please reply that you have seen this)

I still say it should be as I suggested. People who do documentary research find that history is littered with mispelled documents, names on gravestones etc. It is possible, indeed likely, that the calligrapher in the 16th or 17th century who made the inscription, or the person who wrote the motto down for him or her to copy, or somebody who repaired the shield later on, was illiterate in English or Latin or both.

The motto as shown is identical to a very well known quotation from Ovid, a very famous Roman writer.

It's would seem there is no other explaination....agnosco!
contrex;
Many Thanks for your help! Your efforts have saved us a great deal of time. Everyone here agrees with your findings.... I will study the works of Ovid

Fortuno Procedo,

Xiphias