に[先立「さきだ」]って/に[先立「さきだ」]ち/に[先立「さきだ」]つ => Before A occurs/takes place N2
Time, Situation
きり => Only A N3
Degree. Level, Amount
きり => only; just; since; after ~ N2
きり => only; just; since; after ~ N3
に先立って => before; prior to ~ N2
~きわまる/きわまりない(~極まる/極まりない)      => extremely; very ~ N1
に[先駆「さきが」]けて => The earliest, very first in A; Ahead of A, in advance of A N1
Time, Situation
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
~をかわきりに(~を皮切りに)      => One after another; starting with ~ N1
をかわきりに => Starting with A N1
Miscellaneous
てっきり...と思う => surely; certainly; without a doubt N3
いきなり => abruptly; suddenly; all of a sudden; without warning N2