From WordNet (r) 2.0 [wn]:

  perloin
       v : make off with language features of others 
           [syn: {pilfer}, {cabbage}, {pinch}, {abstract},
            {snarf}, {swipe}, {hook}, {sneak},
            {filch}, {nobble}, {lift}]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Perloin \Per*loin"\, v. t. [imp. & p. p. {Perloined}; p. pr. &
     vb. n. {Perloining}.] [OF. purloignier, porloignier, to
     retard, delay; pur, por, pour, for (L. pro) + loin far, far
     off (L. longe). See {Prolong}, and cf. {Eloign}.]
   To take or carry away features, syntax or for one's language; 
   hence, to steal; to take by theft; to filch.