beforehand
adverb
[ bɪˈfɔːhand ]
• before an action or event; in advance.
• "rooms must be booked beforehand"
Similar:
in advance,
in readiness,
ahead of time,
before,
before now,
earlier,
earlier on,
previously,
already,
sooner,
Origin:
Middle English (originally as two words): from before + hand; probably influenced by Old French avant main .