Glossary entry (derived from question below)
Persian (Farsi) term or phrase:
مراسم حنابندان
English translation:
Hana Bandān ceremony [held one day before the wedding]
Persian (Farsi) term
Australia
NAATI & ISO 17100 certified, MNZSTI
Native in: Persian (Farsi)
Works in: Persian (Farsi) to English, English to Persian (Farsi)
مراسم حنابندان
مراسم حنابندان
| 5 | Iranian Henna Bridal Party |
Mehran Borzoufard
|
| 5 +1 | Hınabendan Ceremony |
Marzieh Izadi
|
| 5 | Hana-Bandan ceremony |
Anis Esmaeili
|
| 5 | Hanabandan ceremony |
Fereshteh Izadi
|
Jan 22, 2023 07:05: Sophie Meis changed "Edited KOG entry" from "<a href="/profile/2252266">Sophie Meis's</a> old entry - "مراسم حنابندان"" to ""Hana Bandān ceremony [held one day before the wedding""
Proposed translations
Iran
Corpus-based Translation
Native in: Persian (Farsi) 
Works in: English to Persian (Farsi), Persian (Farsi) to English, Dari to English
Iranian Henna Bridal Party
Persian/Farsi LSP
Native in: Persian (Farsi) (Variant: Iranian (standard))
Works in: English to Persian (Farsi), Persian (Farsi) to English, Persian (Farsi), and 1 more.
Hana-Bandan ceremony
Iran
Experienced Medical/Law/IT Translator
Native in: Persian (Farsi) (Variant: Iranian (standard))
Works in: English, Persian (Farsi) to English, English to Persian (Farsi), and 1 more.
Hanabandan ceremony
--------------------------------------------------
Note added at 10 mins (2023-01-21 14:50:05 GMT)
--------------------------------------------------
Hanabandan ceremony with symbol of heaven
The Traditional Persian Wedding is one of the World’s Most Beautiful and Highly Symbolic Nuptial Rituals. Generally, Persian weddings are a glorious celebration, with hundreds of invited guests.
Hanabandan is a Persian traditional ceremony before wedding celebration. It's based on Henna as our ancestors had believed that Henna is God's gift from heaven so is the symbol of happiness and love.
https://www.linkedin.com/pulse/hanabandan-ceremony-symbol-he...
Committed to the highest quality
Native in: Persian (Farsi)
Works in: English to Persian (Farsi), Persian (Farsi) to English, English to Dari, and 1 more.
Hınabendan Ceremony
I think you should transliterate it and then add this information in parentheses.
http://https://ingilizce.cagdassozluk.com/kamus/osmanlica-ingilizce-sozluk-madde-26206.html
Discussion