Create custom language overrides

You can create your own language overrides for the strings used by the Joomla user login system.

There is the list of the language strings used for Username/Email labels:

; Component Login View
COM_USERS_LOGIN_USERNAME_LABEL="Username"

; Module Login
MOD_LOGIN_VALUE_USERNAME="Username"

; Reset Password
COM_USERS_FIELD_PASSWORD_RESET_LABEL="Email Address"
COM_USERS_RESET_REQUEST_LABEL="Please enter the email address for your account. A verification code will be sent to you.
Once you have received the verification code, you will be able to choose a new password for your account."
COM_USERS_FIELD_RESET_CONFIRM_USERNAME_LABEL="Username"