glean 
/ˈgli:n/ verb
gleans; gleaned; glean·ing /ˈgli:n/ verb 1 [+ obj] a : to gather or collect (something) in a gradual way
▪ She gleaned her data from various studies. ▪ He has a collection of antique tools gleaned from flea markets and garage sales.
b : to search (something) carefully
▪ They spent days gleaning the files for information. 2 : to gather grain or other material that is left after the main crop has been gathered [no obj] ▪ They spent hours gleaning in the wheat fields. [+ obj] ▪ gleaning stray ears of corn ▪ gleaning a vineyard
▪ She gleaned her data from various studies. ▪ He has a collection of antique tools gleaned from flea markets and garage sales.
b : to search (something) carefully
▪ They spent days gleaning the files for information.
— glean·er noun, plural glean·ers [count]
