Webster's English Dictionary

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sire

1. sire \'si-(*)r\ n [ME, fr. OF, fr. L senior older - more at SENIOR] 1a: 
   FATHER  archaic  1b: male ancestor : FOREFATHER  1c: ORIGINATOR, AUTHOR  
   archaic  2a: a man of rank or authority; esp : LORD - used formerly  as a 
   form of address and as a title obs  2b: an elderly man : SENIOR  3: the 
   male parent of an animal and esp. of a domestic animal 
2. sire vt 1: BEGET, PROCREATE - used esp. of domestic animals  2: to bring 
   into being : ORIGINATE