Which is the verb form of the word `ability`?

Explanation:

Correct Answer is: enable
Ability এর verb form হচ্ছে – Enable. 
Enable (verb): 
English Meaning – To provide with the means or opportunity. 
Bengali Meaning – সক্ষম করা; ক্ষমতা প্রদান করা।
Example Sentence : Answering these questions enables experiential scalability.

Ability (noun):
English Meaning – The quality or state of being able. 
Bengali Meaning – সামর্থ্য; সক্ষমতা। 
Example Sentence : She has shown some ability with foreign languages.

Source: Merriam Webster Dictionary, Accessible Dictionary by Bangla Academy.