extrapolate
extrapolate (ek-strap-[schwa]-layt), vb. 1. To estimate an unknown value or quantity on the basis of the known range, esp. by statistical methods. 2. To deduce an unknown legal principle from a known case. 3. To speculate about possible results, based on known facts. — extrapolative (-lay-tiv or -l[ schwa]-tiv), extrapolatory (-l[schwa]-tor-ee), adj. — extrapolator (-lay-t[schwa]r), […]