1. With passionate fervour
   "both those for and against are fervently convinced they speak for the great majority of the people"
   - fierily, fervidly

See also: fervent

• Erythronium californicum
• Erythronium dens-canis
• Erythronium grandiflorum
• Erythronium montanum
• erythropoiesis
• erythropoietic
• erythropoietin
• Erythroxylaceae
• Erythroxylon
• Erythroxylon coca
• Erythroxylon truxiuense
• Erythroxylum
• Es
• Esaki
• Esau
• escadrille
• escalade
• escalader
• escalate
• escalation
• escalator
• escalator clause
• escallonia
• escallop
• escalope