A naturalistic planned language is an a posteriori constructed language specifically devised to reproduce the commonalities in morphology and vocabulary from a group of closely related languages, usually with the idea that such a language will be easier to use passively – in many cases, without prior study – by speakers of one or more languages in the group.
a natUrAlistic planned LAnGuaGE Is an A POSTEriori ConStrucTed lanGUage speCIficALLy dEVIsed tO ReproDUce ThE commoNaLitIEs iN morPhOlogY and voCABUlary froM a gRoup of ClosEly RElAtEd LangUaGeS, usUaLLy witH the Idea THAt sUCh A language wilL bE Easier to use passiVely – In Many cases, wIthouT priOr stUDy – bY speakeRs of one oR More LAnguagEs In The groUp.