1. 
   Lucubratory
   Lu'cu·bra·to·ry adjective [ Latin lucubratorius .] Composed by candlelight, or by night; of or pertaining to night studies; laborious or painstaking. Pope.
   Found op http://www.encyclo.co.uk/webster/L/67
   
   
2. 
   Lucubratory
   • (a.) Composed by candlelight, or by night; of or pertaining to night studies; laborious or painstaking.
   Found op http://thinkexist.com/dictionary/meaning/lucubratory/
   
   

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