Bible Dictionaries
Optional

Webster's Dictionary

(1):

(n.) See Elective, n.

(2):

(a.) Involving an option; depending on the exercise of an option; left to one's discretion or choice; not compulsory; as, optional studies; it is optional with you to go or stay.

Bibliography Information
Webster, Noah. Entry for 'Optional'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​o/optional.html. 1828.