collateral

Adjective

• situated or running side by side
  • collateral ridges of mountains
    

• accompany, concomitant
  • collateral target damage from a bombing run
    

• serving to support or corroborate
  • collateral evidence
    

• descended from a common ancestor but through different lines
  • cousins are collateral relatives
    
  • an indirect descendant of the Stuarts
    

Noun

• a security pledged for the repayment of a loan

Related words

• Antonyms: 
  lineal , direct