Genearch :: Genearch (n.) The chief of a family or tribe.
Insearch :: Insearch (v. t.) To make search after; to investigate or examine; to ensearch.
Nearctic :: Nearctic (a.) Of or pertaining to a region of the earth's surface including all of temperate and arctic North America and Greenland. In the geographical distribution of animals, this region is marked off as the habitat certain species..
Re-search :: Re-search (v. t.) To search again; to examine anew.
Research :: Research (n.) Diligent inquiry or examination in seeking facts or principles; laborious or continued search after truth; as, researches of human wisdom..
Research :: Research (v. t.) To search or examine with continued care; to seek diligently.