Question

akin
 /əˈkın/  adj  , not used before a noun [more ~; most ~]
  : similar or related
   The two languages are closely akin.
  — usually + to
   The two languages are closely akin to one another.
   a feeling akin to loneliness [=a feeling that resembles loneliness]
   To break your promise to him would be akin to betraying your friendship.