What is the meaning of Dever?

reintegrationist spelling of deber

to have to

should

must

duty

place, spot

region, area

must; to have to

to have to

to owe

duty, obligation

should (indicates that an action is considered by the speaker to be obligatory)

ought (indicates that the subject of the sentence has some obligation to execute the sentence predicate.)

will likely (indicates that the subject of the sentence is likely to execute the sentence predicate.)

owe (to be in debt.)

duty (that which one is morally or legally obligated to do)

homework

total sales

in the country, a boy who welcomes the guests and serves them dishes at traditional weddings and also leads the wedding processional; (through extension) a person accompanying the bride

brother-in-law (one's husband's brother)

Obsolete spelling of deber

Source: wiktionary.org