~にたえる (耐える)    => bear doing ~ N1
の[末「すえ」]/た[末「すえ」] => conclusion N2
Reason, Result, Response
さえ...たら => Just...is enough N3
Conditions (sufficient conditions)
にこたえ(て) => in response to ~ N2
ただでさえ => ordinary; usual... also... N2
Description
たまえ => do~; order somebody to do something N2
Order
たとえ~ても => even if… is the case N3
にたえる/にたえない => Can't do A, can't stand/tolerate A, Can do A, N1
Potential, Possibility
に[答「こた」]えて => In response to A N2
Reason, Result, Response
さえ/にさえ/でさえ => Even N3
Not only, Not even
てもらえるとありがたい => grateful, thankful if... N4
Emphasize
たとえ~ても => Even if A is the case N3
Not only, Not even