Other forms: educated, educating, educates
To educate somebody is to teach them over a long period. Not one lesson — years of them.
The length is what separates educating from teaching or training, since education shapes a person rather than passing on a skill. It takes in or about. There is a common modern use meaning to inform people about an issue, as in educating the public, which some find slightly condescending. The noun is education and the adjective educated describes both a person and, in an educated guess, a judgement made with real knowledge behind it.
Proto-Indo-European
*dewk-
Latin
ēducātus
Middle English
educaten
English, today
educate
From Middle English educaten, from educat(e) + -en, from Latin ēducātus, the perfect passive participle of ēducō (“(of a child, physically or mentally) to bring up, train, nourish; (of a person in learning or art) to rear, educate, train; (plants or animals) to nourish, support, or produce”) (see -ate), further from an intensive/frequentative formed on ēducō + -ō.
Etymology from Wiktionary, CC BY-SA