This is the 12802nd most frequent Korean word.
데이
"데이" means "day," often used to refer to special days or events.
Here, '데이' appears as '데이트' which is used to mean 'date' in the context of going out with someone romantically.
나는 오늘 데이트를 하기로 했다.
I decided to go on a date today.
In this case, '데이' refers to a 'day,' emphasizing it as a particular or special event.
기념일에 특별한 데이를 보내자.
Let's spend a special day on the anniversary.
Here, the phonetic similarity incorporates its use within the compound word or phrase, carrying over sound while adopting local usage.