Persian suffix یدن (idan) is used to derive verbs from nouns and adjectives.

Word Meaning Derivation Meaning
بوس
bus
kiss بوسیدن
busidan
to kiss
ترس
tars
fear ترسیدن
tarsidan
to fear
جنگ
jang
war جنگیدن
jangidan
to fight
جوش
juš
boiling جوشیدن
jušidan
to boil
خشک
xošk
dry خشکیدن
xoškidan
to dry up, wither
رقص
raǧs
dance رقصیدن
raǧsidan
to dance
فهم
fahm
understanding فهمیدن
fahmidan
to understand

This suffix is not productive. It it is not used much in forming new verbs. Persian prefers compound verbs and uses verbs like کردن (kardan) and شدن (šodan) to make new verbs. Even some of the verbs in the above table have a prevailing compound alternative:

Word Meaning Derivation Meaning
بوس
bus
kiss بوس کردن
bus kardan
to kiss
جنگ
jang
war جنگ کردن
jang kardan
to fight
خشک
xošk
dry خشک کردن
xoš kardan
to (make) dry
خشک
xošk
dry خشک شدن
xošk šodan
to become dry, wither