They say that English came from Greek and Latin because of many of the prefixes, the base words, and the root words, and then they say Spanish came from Latin. Did Spanish just come from Latin? I know hablar means to talk while sol is a Latin word for sun that came into the Spanish language. So this is why I asked how were the 2 languages of Greek and Latin formed.

Why Greek language is a unic language ?

When you hear Spanish language ; you feel great connection with Italian , Romanian , Frensh ..etc . when you hear English ; you feel good connection with german ..etc . When you hear Jewish ; you feel great connection with Arabic .. etc . But when you hear a greek language ; you don't find a clear relation with the spoken language of the other countries . Am I wrong ? why ?