erewhile
adverb
ere·while er-ˈ(h)wī(-ə)l 
variants or less commonly erewhiles
er-ˈ(h)wī(-ə)lz
archaic
: a while before : formerly
Word History
First Known Use
13th century, in the meaning defined above
- erythroider
- erythroidest
- erythrolysins
- erythromycin
- erythromycins
- Erythroneura
- erythronia
- erythronium
- erythroniums
- erythrons
- erythrophobia
- erythrophore
- erythroplastid
- erythropoieses
- erythropoiesis
- erythropoietic
- erythropoietin
- erythropoietins
- erythropterin
- erythroscope
- erythrosiderite
- erythrosin
- erythrosine
- erythrosines
- erythrosins