In Hindi, prefixes are known as प्रत्यय (pratyay).

As you travel around India, you will come across some consistently and commonly used prefixes. Some of these suffixes will be introduced here.

आलय aalay = place of/home/dwelling/abode

दुग्धालय dugdhaalay = दुग्ध( milk)+ आलय = dairy
रुग्णालय rugnaalay = रुग्ण (ill/sick) + आलय = hospital/place where the ill reside
संग्रहालय sangrahaalay = संग्रह (collection)+ आलय = museum
पुस्तक  संग्रहालय  pustak sangrahaalay = पुस्तक (book) + संग्रहालय = a collection of books/library/archives
वस्तु संग्रहालय vastu sangrahaalay = वस्तु (objects/articles) संग्रहालय = a collection of objects/museum
शौचालय shauchaalay = शौच (excrement) + आलय = toilet
न्यायालय nyaayaalay = न्याय (justice) + आलय = court of justice
वस्त्रालय vastraalay = वस्त्र (clothes) + आलय = clothing store/clothier
मंत्रालय mantraalay = मंत्री (minister) + आलय = parliament/where ministers meet and conduct office

खाना khana = quarters
दवाखाना davaakhana = दवा (medicine) + खाना = doctor’s clinic
क़ैदख़ाना qaidkhaana = क़ैद (captive/under arrest) + खाना = prison

घर ghar = home/abode 

चिड़ियाघर/Zoo (image by MGM on Flickr.com)

डाकघर daakghar = डाक (mail) + घर = post office
चिड़ियाघर  chidiyaghar = चिड़िया (birds) + घर = zoo
स्नानघर snaanghar = स्नान (bath) + घर = bathroom/shower stall