Questions & Answers about Έστω κι αν λείψει, θα συνεχίσει.
It is a set expression meaning even if.
More literally:
- έστω originally means something like let it be
- κι αν means and if / if
But in this sentence, you should understand the whole chunk Έστω κι αν as one concessive expression: even if, even in the case that.
So the sentence structure is:
- Έστω κι αν λείψει = Even if he/she/it is absent
- θα συνεχίσει = it/he/she will continue
κι is just a shorter form of και.
In everyday Greek, especially before a vowel, και often becomes κι:
- κι αν = και αν
There is no real difference in meaning here. κι αν simply sounds more natural and fluent in this phrase.