Suffix (प्रत्यय) is the affix that is attached after the stem of a word. In this way, a new word is formed.

Ten important suffixes which can be found in numerous Hindi words are :

1. आई (Aai) 

Examples: पढाई (padai – reading), लिखाई (likhai – writing), बुनाई (bunaai – Weaving), कमाई (kamaai – Earnings)

2. इया (Iya)
Examples: बढ़िया (badiya – good), घटिया (ghatiya – bad),

3. आ (Aa)
Examples: भूला (bhoola – lost), घेरा (ghera – surrounded)

4. ई (I)
Examples: धनी (dhani – rich), क्रोधी (krodhi – angry), लालची (lalchi – greedy)

5. अकः (Ak)
Examples: लेखक (lekhak – writer), कृषिक (krishak – farmer), सेवक (sevak – Servant), संयोजक (snyonjak – Orgnaizer)

6. अनीय (Aniya)
Examples: स्मरणीय (smarniya – memorable), निंदनीय (nindaniya – condemn-able), आदरणीय (aadarniya – Respected)

7. आस (Aas)
Examples: खटास (khataak – bitterness), मिठास (mithaas – sweetness)

8. आर (Aar)
Examples: सुनार (sunaar – jeweler), लुहार (luhaar – smith), कुम्हार (kumhar – potter), इतिहासकार (itihaskar – historian)

9. वाला (Wala)
Examples: फलवाला (fruit retailer), घरवाला (house owner), हिम्मतवाला (himmatwala – courageous)

10. शाली (Shaali)
Examples: बलशाली (balshali – strong), शक्तिशाली (shaktishali – powerful), वैभवशाली (vebhavshali – grandiose)