Grammar(3).doc

λεπτό, introduced in L27 as "minute", has two other very common uses, all derived from its ancient meaning as a small coin of low value.

In addition to a minute of time (i.e., 1/60th of an hour), λεπτό is also used for one minute of angle (i.e., 1/60th of one degree of arc). You will see these two uses, time and angle, symbolically in print as:
1' -- ένα λεπτό/λεφτό (minute of time) -or- ένα πρώτο λεπτό (minute of angle)
2' -- δύο λεπτά/λεφτά (minutes of time) -or- δύο πρώτα λεπτά (minutes of angle)

λεπτό was also used historically for 1/100th of a Greek drachma. Now, as part of the eurozone, Greece uses λεπτό to refer to one eurocent (i.e., 1/100th of a euro):
0,01 € -- ένα λεπτό (Greece)
0,02 € -- δύο λεπτά

The equivalent word used with foreign decimal currencies like the US dollar or the current British pound is the indeclinable το σεντ. Because of its history as a British colony, Cyprus uses σεντ, rather than λεπτό, to refer to a eurocent:
0,01 € -- ένα σεντ (Cyprus)
0,02 € -- δύο σεντ

As introduced in L27, the Modern Greek word for "half" is the regularly declined adjective μισός, -ή, -ό: μισός χρόνος, μισή ώρα, μισό λίτρο.

When used with the numbers 1 and above (i.e., 1½, 2½, 3½, etc.), the situation, especially in writing, becomes somewhat chaotic in actual contemporary use. 1½ should have the inflected forms ενάμισος, μιάμιση, ενάμισο: ενάμισος χρόνος, μιάμιση ημέρα, ενάμισο χιλιόμετρο.

In practice, though, when used with numbers 1 and above (and definitely with the number 2 and above), "half" becomes the indeclinable spoken suffix /-misi/. Strictly speaking, this indeclinable ending should be spelled -μισυ (from the ancient/Classical adjective ήμισυς, ημίσεια, ήμισυ), but it is now usually seen in print as -μισι.

However, you will frequently come across this suffix spelled as -μιση, irrespective of the gender of the noun that follows, perhaps because of sound, meaning, and spelling confusion with the regularly declined adjective μισή, feminine of μισός.

The most commonly seen "half" numbers are thus:
½ -- μισός, -ή, -ό
1½ -- ενάμισυ (now usually spelled ενάμισι)
2½ -- δυόμισυ (now usually spelled δυόμισι)

Note that while the commonly used μισός, ενάμισι, and δυόμισι are usually written out in printed material, you will normally see only an Arabic numeral for 3½ and above. So for reference, here are the the remaining ones through 10½:
3½ -- τρεισήμισυ (although τριάμισυ is also possible for N. nouns: τρεισήμισυ/τριάμισυ χρόνια)
4½ -- τεσσεράμισυ (although τεσσερισήμισυ is also possible for M. and F. nouns)
5½ -- πεντέμισυ
6½ -- εξήμισυ (often misspelled as εξίμισι)
7½ -- επτάμισυ
8½ -- οκτώμισυ
9½ -- εννιάμισυ
10½ -- δεκάμισυ