Darshan is a sanskrit word. A person doing Darshan is daarshanik. if you mean darshan = seeing then it is drashta. (anyway darshan is a Hindi form of Sanskrit word darshanam = seeing,insight etc.)
The Sanskrit word for wheat is "godhum."
In Sanskrit, 'prameya' is the word for algorithm.
In Sanskrit, jamun is called Jambu.
Clothes in Sanskrit are called "Vastra."
Indigo is called "Nila" in Sanskrit.
VAYU is what you call air in sanskrit.
Sweet in Sanskrit is called "मधुर" (Madhura).
In Sanskrit, kite is called "patanga" or "chitrakarika."
Light in Sanskrit is called "प्रकाश" (prakāśa).
The word for LITCHI in Sanskrit is "Lichikā" or "Lichu".
In Sanskrit 'gem' is called 'ratnam(n)[ रत्नम्]'.
In Sanskrit 'oyster' is called 'shuktiH(f)[शुक्ति:]'