What does the little dot on top of "i" or "j" call?

[rubPzai]

It is Tittle from the Latin "titulus". Grammatically it is called "diacritic dot".

 

[rubPzai]

you are welcome

 

[Heer]

nice information

 

[rubPzai]

thanks

 

[Teponim]

Splendid