-ivitysuffix

Primary stress is attracted to the first syllable of this suffix and vowels may be reduced accordingly.

Etymology: < -ive suffix + -ity suffix.Found in borrowings and adaptations of Latin and French words from the end of the Old English period, e.g. nativity n., privity n., etc. Formations within English are found (sparingly) from the 19th cent., e.g. effectivity n. In sense 2 apparently earliest in the late 19th cent. in permittivity n. With use in this sense compare:1895 Rep. Brit. Assoc. Advancem. Sci. 197 That the termination -ance be used in general for words expressing the properties of a definite body or piece of matter; e.g., resistance, conductance, inductance, permeance, reluctance, &c.; and that the termination -ivity or -ility or the like be used for words expressing the specific properties of a material; e.g., conductivity, resistivity, inductivity, refractivity, permeability, &c.

1. Forming abstract nouns corresponding to adjectives in -ive suffix, as effectivity n., incendivity n., etc.

2. Forming nouns denoting a specific property of a material, as elastivity n., permittivity n., etc.

This is a new entry (OED Third Edition, November 2010; most recently modified version published online December 2019).

单词	-ivity
释义	-ivitysuffix Primary stress is attracted to the first syllable of this suffix and vowels may be reduced accordingly. Etymology: < -ive suffix + -ity suffix.Found in borrowings and adaptations of Latin and French words from the end of the Old English period, e.g. nativity n., privity n., etc. Formations within English are found (sparingly) from the 19th cent., e.g. effectivity n. In sense 2 apparently earliest in the late 19th cent. in permittivity n. With use in this sense compare:1895 Rep. Brit. Assoc. Advancem. Sci. 197 That the termination -ance be used in general for words expressing the properties of a definite body or piece of matter; e.g., resistance, conductance, inductance, permeance, reluctance, &c.; and that the termination -ivity or -ility or the like be used for words expressing the specific properties of a material; e.g., conductivity, resistivity, inductivity, refractivity, permeability, &c. 1. Forming abstract nouns corresponding to adjectives in -ive suffix, as effectivity n., incendivity n., etc. 2. Forming nouns denoting a specific property of a material, as elastivity n., permittivity n., etc. This is a new entry (OED Third Edition, November 2010; most recently modified version published online December 2019). < suffix
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