IPA: /prɪˈfɜːrəbli/
KK: /prɪˈfɜrəbli/
In a way that is more desirable or preferred; ideally.
We should meet at the park, preferably in the afternoon.
Preferably → It is formed from "pre-" (meaning before) and "ferre" (meaning to carry or bear) and the suffix "-ably" (meaning in a manner). The word "preferably" means in a manner that is preferred or carried out before other options.
Think of 'carrying' ('ferre') something 'before' ('pre-') other choices — that's why preferably means to choose something over others.