フランス語から。語源はfac, to doで、語源的にはdo, factと同じ。feature（特徴）、face（顔）、映画ジャンルのfeature film（長編映画）に由来する。
英語の語源
feature
feature: [14] Feature comes ultimately from Latin factūra, a derivative of the verb facere ‘do, make’ which meant literally ‘making, formation’. Elements of this original sense remained when the word reached English via Old French faiture – when John Dymmok wrote in 1600 of ‘horses of a fine feature’, for example, he was referring to their shape or general conformation – but already a semantic narrowing down to the ‘way in which the face is shaped’ had taken place.
This meaning was then distributed, as it were, to the individual components of the face, and hence (in the 17th century) to any distinctive or characteristic part. => difficult, fact, factory, fashion, feasible, feat
feature (n.)
early 14c., "make, form, fashion" (obsolete), from Anglo-French feture, from Old French faiture "deed, action; fashion, shape, form; countenance," from Latin factura "a formation, a working," from past participle stem of facere "make, do, perform" (see factitious).
Sense of "facial characteristic" is mid-14c.; that of "any distinctive part" first recorded 1690s. Entertainment sense is from 1801; in journalism by 1855. Meaning "a feature film" is from 1913. Latin factura also is the source of Spanish hechura, Portuguese feitura, Italian fattura.
feature (v.)
1755, "to resemble, have features resembling," from feature (n.). The sense of "make special display or attraction of" is 1888; entertainment sense from 1897. Related: Featured; featuring.
例文
1. The most arresting feature is the painted wall decoration.
最も目立つ特徴は、絵が描かれた壁面装飾です。
2.Wanton violence is now becoming a regular feature of urban life.
野放図な暴行は都市生活の中でますます見慣れてきた。
3.Television companies tend to censor bad language in feature films.
テレビ会社は、ストーリー映画を審査する際に暴言を削除することが多い。
4.The festival will feature pyrotechnics，live music，and sculptures.
フェスティバルには花火ショー、ライブコンサート、彫刻展があります。
5.The sadddles feature a reflective trim for night time visibility.