Sciences
There is no word for jeans in Greek. We use the word ''jeans'' or in Greek letters τζίνς.
There is no Greek word for golf. We use the word ''golf'' or in Greek letters ''Γκόλφ''.
You use Greek words in Greek language. There are various words that must be used in Greek language.
We use the word αδελφός (adelfos/brother).
The Greek word for white is "aspro". Old Greek word (but still in use ) for white is ''lefko'' or ''leuko'', as in ''leukemia'', which means ''white blood''.
The greek word for stop is "σταματώ" (stamato/=to stop). If you want to use the imparative, then it is "σταμάτα" (stamata).
The classical Greek, and New Testament word is "proton", also the use of "proto" is traced to this word. A proto-type, or first-type.
No Greek word for skateboard exists. We just use the English word or the (same) word in Greek letters σκειτμποαρντ. You can use the -ιστης (-istis) in the end of the word because it means '' the person who does (that)'' but that would probably get you beat up for being a total geek. The greek word would be used is τροχοσανίδα (literaly means wheelboard). Τροχοσανιδιστής (trohosanidistis) is the one uses the skateboard.
Actually there isn't a Greek word for computer. We use the word υπολογιστής which accurate translates as calculator. [v. υπολογίζω (ipologizo)]
The word "blue" in Greek is μπλε.Ancient Greek lacked the word for the colour blue and Homer called the colour of the sea 'Wine Coloured'. ________________________________________ The above answer is wrong. The Greek word for blue is "κυανό" We use more often the word "μπλε" which is not greek but latin (I suppose). The word "κυανό" is used is specific cases.
Archaic is a word from Greek that means from a previous time period or no longer in use.
To use Greek in a sentence, you can incorporate Greek words or phrases within an English sentence. For example, "I love eating gyros with tzatziki sauce." You can also write a full sentence in Greek characters if you are familiar with the Greek alphabet.