かぎり/ないかぎり => While A is the case/still true N2
Conditional, While
~かぎりなく ... にちかい => Almost, near, like, almost like N... N1
Limit, limit
かぎりだ => Very A N1
Degree/ Level/Amount
に[限「かぎ」]って/に[限「かぎ」]り => Only A (A is a special condition) N2
(Not)only, (Not) even
~かぎり => as long as; while… is the case; as far as; while ~ N2
Emphasis on degree
…すぎ ... => too much N4
Emphasis on degree
を[余儀「よぎ」]なくされる => Must do A N1
Will, Decision, Doing
すぎる => too much N4
をかぎりに => A marks the time that something ends/starts, To the full extent/usage of A N1
Time, Situation
ひとり ... だけでなく => not only…, not just… N2
Add
ばかりでなく => not only.. but also; as well as ~ N3
に過ぎない => no more than; just; merely; only ~ N2