1560s, "act of representing or depicting;" 1590s, "representation, description;" a native formation from delineate, or else from Late Latin delineationem (nominative delineatio) "sketch, description," noun of action from past-participle stem of Latin delineare (see delineate).
Delilah
delimit
delimitation
delimiter
delineate
delineation
delinquency
delinquent
deliquesce
deliquescent
delirious