The Vowel-Shortening Mark

Level 6

The school spelling lesson shows short เ-ะ with a final consonant in words such as เป็น, เด็ก, and เย็น, and short แ-ะ in แข็ง. These written forms contain ไม้ไต่คู้, ◌็.

How It Works

1. Read the Displayed Short-Vowel Spellings
The school lesson writes เ-ะ with a final consonant as เ-็-: ป + เ-ะ + น gives เป็น, ด + เ-ะ + ก gives เด็ก, and ย + เ-ะ + น gives เย็น. It writes ข + แ-ะ + ง as แข็ง. These are the particular words used in the native examples below.

2. Separate Vowel Length and Tone
Compare ◌็ with tone marks; it marks short vowel spelling in these examples rather than a pitch instruction. Read the entire syllable using tone rules, including consonant classes and the ending sound. In เด็ก, mid-class ด and final /k/ make this unmarked syllable low-toned. By contrast, the /n/ ending of เป็น or เย็น remains a live ending even with a short vowel.

3. Reproduce the Requested Words
The first exercise requests the school spelling เด็ก, not เดะก. The second requests เป็น, not เป๊น: ◌๊ is a different sign among the tone marks, not the vowel-shortening mark used in เป็น. These tasks concern the displayed word spellings; they do not establish a blanket rule for every borrowed word or every possible combining-mark sequence.

4. Learn Other Spellings Separately
The related particle ก็ is a separate word containing the written mark. Learn its complete entry rather than deriving a hidden tone-mark history or connected-speech tone from these four short-vowel examples.

Examples (4)

  1. เขาเป็นหมอ

    He is a doctor.

    Word by Word: he be doctor

    The word เป็น (pen) uses mai tai khu to shorten the vowel เ- to a short 'e' before the final consonant 'n'.

  2. เด็กเล่นในสวน

    The child plays in the garden.

    Word by Word: child play in garden

    The word เด็ก (dek) uses mai tai khu to shorten the vowel เ- to a short 'e' before the final consonant 'k'.

  3. อากาศเย็นสบาย

    The weather is pleasantly cool.

    Word by Word: weather cool comfortable

    The word เย็น (yen) uses mai tai khu to shorten the vowel เ- to a short 'e' before the final consonant 'n'.

  4. น้ำแข็งเย็นมาก

    The ice is very cold.

    Word by Word: water hard cold very

    The word แข็ง (khaeng) uses mai tai khu to shorten the vowel แ- to a short 'ae' before the final consonant 'ng'.

Common Mistakes

  • Using a different spelling when the exercise requests เด็ก.

    เดะก
    เด็ก

    Reproduce the school spelling เด็ก: ด + short เ-ะ + final ก is written with เ and ◌็, without the separate final ะ in เดะก. This task asks for this particular word spelling.

  • Replacing the vowel-shortening mark with ◌๊ when the exercise requests เป็น.

    เป๊น
    เป็น

    The school spelling is เป็น, containing ◌็. เป๊น replaces it with the different written tone mark ◌๊ and does not reproduce the requested spelling. Distinguish the actual signs rather than assigning a pitch from their visual height.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

The Vowel-Shortening MarkLevel 6

Learn This First

To understand the Mai Taikhu (ไม้ไต่คู้), you first need to be comfortable with the basic Thai script and how vowels are placed around consonants. Most importantly, you must understand the concept of vowel length in Thai, as this mark specifically functions to change a long vowel sound into a short one in certain syllable structures.

Words in This Pattern

ไม้ไต่คู้