Which of the following words is spelled correctly?

• Idiosyncrasy
English Meaning: 
- A mode of behaviour or way of thought peculiar to an individual.
- An abnormal physical reaction by an individual to a food or drug.
Bangla Meaning:
- ব্যক্তির বিশিষ্ট চিন্তারীতি বা আচরণ; স্বভাব বৈশিষ্ট্য।

Example: One of his little idiosyncrasies was always preferring to be in the car first.

Source: 
1. Oxford Learner's Dictionary.
2. Accessible Dictionary by Bangla Academy.