Step 1: Understanding the Word:
The word means "at once; instantly."
Step 2: Analyzing the Spelling:
The word is built from 'immediate' and the suffix '-ly'. The key is to spell 'immediate' correctly. It has a double 'm' and ends with '-ate'.
Let's check the options:
(A) Immediatly - Missing the 'e' before '-ly'. A common mistake.
(B) Immediately - Correct spelling: 'immediate' + 'ly'.
(C) Imediately - Missing the double 'm'.
(D) Immedeately - Incorrect vowels 'e' instead of 'i' and 'a'.
Step 3: Final Answer:
The correctly spelt word is Immediately.