pre-estimate1
/ˌpriːˈɛstɪmət/ /prɪˈɛstɪmət/noun
An estimate made in advance or beforehand.
Origin
Early 20th century; earliest use found in Cases Court of Session, Scotland. From pre- + estimate, after pre-estimate.
pre-estimate2
/(ˌ)priːˈɛstɪmeɪt/verb
[with object] To estimate beforehand, make a prior estimation of.
Origin
Late 19th century; earliest use found in The Times. From pre- + estimate.