Barabbas = "son of a father or master"
1] the captive robber whom the Jews begged Pilate to release instead of Christ
derivation: of Aramaic origin (01247) and (01)
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?number=912&version=kjv

(01247)
1] son
derivation: corresponding to (01121)
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=1247&version=kjv

(01121)
1] son, grandson, child, member of a group
   1.a] son, male child
   1.b] grandson
   1.c] children (pl. - male and female)
   1.d] youth, young men (pl.)
   1.e] young (of animals)
   1.f] sons (as characterization, i.e. sons of injustice [for un- righteous men] or sons of God [for angels]
   1.g] people (of a nation) (pl.)
   1.h] of lifeless things, i.e. sparks, stars, arrows (fig.)
   1.i] a member of a guild, order, class
derivation: from (01129)
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=1121&version=kjv

(01129)
1] to build, rebuild, establish, cause to continue
   1.a] (Qal)
       1.a.1] to build, rebuild
       1.a.2] to build a house (i.e., establish a family)
   1.b] (Niphal)
       1.b.1] to be built
       1.b.2] to be rebuilt
       1.b.3] established (of restored exiles) (fig.)
       1.b.4] established (made permanent)
       1.b.5] to be built up (of childless wife becoming the mother of a family through the children of a concubine)
derivation: a primitive root
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=1129&version=kjv

(01)
1] father of an individual
2] of God as father of his people
3] head or founder of a household, group, family, or clan
4] ancestor
   4.a] grandfather, forefathers -- of person
   4.b] of people
5] originator or patron of a class, profession, or art
6] of producer, generator (fig.)
7] of benevolence and protection (fig.)
8] term of respect and honour
9] ruler or chief (spec.)
derivation: a root
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=1&version=kjv

A link to each occurrence of this word in the homepage:
1] Barabbas
2] Barabbas