plural of ERA

In a magisterial manner; authoritatively.

(law) Abbreviation of center. / (law) Abbreviation of centre.

(obsolete) A phalanx (of soldiers, people etc.). / (anatomy) A phalanx. / (zoology) Any of the joints of an insect's tarsus. / (botany) A bundle of stamens joined by their filaments. / A phalanstery.