-ity
(Latin: suffix used to form abstract nouns expressing act, state, quality, property, or condition corresponding to an adjective)
duality
ductility
1. Capability of being extended by beating, drawn out into wire, worked upon, or bent; malleability, pliableness, flexibility.
2. Capability of being easily led or influenced; tractableness, docility.
duplexity
duplicity
eccentricity
educable
Capable of being educated or taught; for example, "Some adults are no longer educable."
efficacity
ellipticity, ellipticities
The deviation or degree of deviation of an ellipse or ellipsoid from a perfect circle or sphere. Ellipticity is measured as the ratio of the major axis to the minor axis of the ellipse or ellipsoid.
ephemerality
epidemicity
The quality of being epidemic.
equalibrity, equilibrity
The state or condition of being equally balanced; equilibrium; equality of weight.
equality
1. The quality of being the same in quantity or measure or value or status.
2. A state of being essentially equal or equivalent; equally balanced.
3. Rights, treatment, quantity, or value equal to all others in a specific group; such as, they should have full equality under the law.
4. An equation in which the quantities on each side of an equal sign are the same.
5. In mathematics, a statement, usually an equation, that one thing equals another.
equatorial mount
A sun-tracking mount, usually clock-driven, whose axis of rotation is parallel to that of the earth.
ethnicity
1. Belonging to an ethnic group.
2. Ethnic traits in general.
eventuality
A possible occurrence or result, especially something undesirable or unexpected.