roto-comb. form

Stress is determined by a range of factors though some degree of stress is usually maintained on this combining form.

Forms: 1800s– roto-, 1800s– rota-.

Origin: Of multiple origins. Partly a borrowing from Latin, combined with an English element. Partly formed within English, by derivation. Etymons: Latin rōta , -o- connective; -o- connective.

Etymology: Partly < classical Latin rōta wheel, roller (see rota n.) + -o- connective, and partly < rot- (in rotary adj., rotation n., etc.) + -o- connective.Formations are found from the first half of the 19th cent., earliest in rotoscope n., which was apparently originally formed as rotascope (with rota- (in rotary adj.) as its first element), but subsequently, after words in -o- connective, developed a variant rotoscope , homophonous in casual speech (see 1853 at rotoscope n. 1). Independent formations occur from the end of the 19th cent. (e.g. rotograph n.). For variation between roto- and rota- compare also rotameter n. and rotometer n., and the group Rotovator at Rotavator n. Forms, rotatiller at rototiller n. Forms, rotospreader at rotaspreader n. Forms, and also rotovirus at rotavirus n. Forms, Rotadyne at Rotodyne n. Forms. Compare also rotagravure at rotogravure n. Forms and discussion at that entry.

Forming nouns and other words with the sense ‘rotary, rotating’, as rotometer n., rotoscope n., etc.

This entry has been updated (OED Third Edition, March 2011; most recently modified version published online December 2020).

单词	roto-
释义	roto-comb. form Stress is determined by a range of factors though some degree of stress is usually maintained on this combining form. Forms: 1800s– roto-, 1800s– rota-. Origin: Of multiple origins. Partly a borrowing from Latin, combined with an English element. Partly formed within English, by derivation. Etymons: Latin rōta , -o- connective; -o- connective. Etymology: Partly < classical Latin rōta wheel, roller (see rota n.) + -o- connective, and partly < rot- (in rotary adj., rotation n., etc.) + -o- connective.Formations are found from the first half of the 19th cent., earliest in rotoscope n., which was apparently originally formed as rotascope (with rota- (in rotary adj.) as its first element), but subsequently, after words in -o- connective, developed a variant rotoscope , homophonous in casual speech (see 1853 at rotoscope n. 1). Independent formations occur from the end of the 19th cent. (e.g. rotograph n.). For variation between roto- and rota- compare also rotameter n. and rotometer n., and the group Rotovator at Rotavator n. Forms, rotatiller at rototiller n. Forms, rotospreader at rotaspreader n. Forms, and also rotovirus at rotavirus n. Forms, Rotadyne at Rotodyne n. Forms. Compare also rotagravure at rotogravure n. Forms and discussion at that entry. Forming nouns and other words with the sense ‘rotary, rotating’, as rotometer n., rotoscope n., etc. This entry has been updated (OED Third Edition, March 2011; most recently modified version published online December 2020). < comb. form
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