Echo Vowel – cillakṣaraṃ, or cillǔ letter
Many Malayalam words end in a special type of vowel that we will call the echo vowel (also called a schwa). Think of it as a kind of half-u vowel sound, a special dependent vowel. Echo vowel has no initial form. It is indicated by a small crescent high and to the right of a basic consonant (്). At the end of a word (where it most frequently occurs), the echo vowel is just another vowel sound.
However, the modern Malayalam script also uses the same symbol to cut off the inherent final a-sound in a consonant. As a general rule of thumb, if the echo vowel is at the end of a word, you can treat it as a half-u vowel sound; if it’s in the middle of a word, it cuts off the a-sound and creates a consonant cluster. Some simple examples with transliteration should illustrate the difference.
ത് (tǔ) as in അത് (atǔ) “that one”
ട് (ṭǔ) as in നാട് (nāṭǔ) “country, region”
ത്പ (tpa) as in ഉത്പത്തി (utpatti) “origin”
ഷ്ട (ṣṭa) as in കഷ്ടം (kaṣṭaṃ) “trouble, problem”
There is another way to cut off the inherent a-sound in a consonant. In Malayalam, it’s called a cillakṣaraṃ, or cillǔ letter. For common words that end in a consonant, a line is drawn vertically to indicate that the a-sound is cut off. In principle, the echo vowel does the same thing, but in practice it’s better to treat echo vowel as a vowel. When words end with one of the following consonants, the cillǔ letter is required. They can also be used in the middle of words with the same effect. While related, therefore, the echo vowel and a cillǔ marker are not the same.
ണ → ൺ (ṇ)
ന → ൻ (n)
ര/റ → ർ (r)
ത/ല → ൽ (t/l)
ള → ൾ (ḷ)
ക → ൿ (k)
Other consonants do not have cillǔ forms. Those all use the echo vowel marker to create a final consonant, though the half-u sound is often still pronounced.
ഷ് (ṣ) as in മാഷ് (māṣ) “teacher”
ഡ് (ḍ) as in ഡേവിഡ് (ḍēviḍ) “David” (name)
സ് (s) as in മനസ്സ് (manassǔ) “mind, heart”
ങ് (ṅ) as in തെങ്ങ് (teṅṅǔ) “coconut tree”
The use of echo vowel and cillǔ letters is very common and you will pick up how to use each correctly with a little practice
Finally, many Malayalam words combine more than one consonant together into a conjunct or cluster. Usually, a conjunct combines two consonants by joining them horizontally at a common stroke or by using the echo vowel marker on the first. You shouldn’t have to memorize every possible cluster, because the methods or patterns of combining consonants are limited. Notice the patterns in some of the more common conjunct consonants:
| ക്ത | ക്ഷ | ഗ്ന | ജ്ഞ | ത്ഥ | ത്മ | ത്സ | ദ്ധ | ശ്ച | സ്ഥ |
| kta | kṣa | gna | jña | ttha | tma | tsa | ddha | śca | stha |
Some n-sounds are tricky in how they combine with other consonants.
| ങ്ക | ഞ്ച | ണ്ട | ന്ത | ന്ദ | മ്പ | ന്റ |
| ṅka | ñca | ṇṭa | nta | nda | mpa | ṉṯa |
The remaining conjunct consonants often use the echo vowel marker to make conjuncts. Traditionally, these conjuncts would have been written vertically, with the second letter below the first. You will see both.
| ക്മ | യ്ത | യ്ച്ച | സ്ന | സ്ക | ഷ്മ | ഷ്ട | ഷ്ണ | ശ്ന | സ്പ | ഴ്ച |
| kma | yta | ycca | sna | ska | ṣma | ṣṭa | ṣṇa | śna | spa | ḻca |
Finally, a few special combining consonant markers for the semivowels (യ ര/റ ല and വ) are used to make the writing less cluttered. These frequent combining forms are simplified or stylized versions of the regular consonant. These are the dependent semivowels.
ത് + യ = ത്യ
വ് + ര = പ്ര
പ് + ല = പ്ല
സ് + വ = സ്വ
Once you have mastered the basic consonants and common conjuncts above, you will easily recognize other conjuncts that occur.