Plausible Non-Words (PNWs) as devised by Paul Meara & colleagues for use in Yes-No Tests (follow links from Tests Home).
For randomly generated PNWs for these and other languages languages see Macquarie University Cog Sci's ARC Non-Word Database (needs Java engine).
ADDITIONAL PNWs FROM IRINA ELGORT'S 2011 study [PDF here] added to bottom left column on 9 Mar 2016
ENGLSH-LIKE PNWs
abrogative acklon adair aistrope almanical baldock balfour bance bastionate batcock benevolate berrow bodelate buttle cambule cantileen channing charactal charlett combustulate condimented connery contortal contrivial cottonwool degate descript detailoring dogmatile dowrick draconite duffin eckett eldred eluctant escrotal fluctual galpin glandle gumm gummer hapgood haque homoglyph horobin horozone hoult hubbard humberoid jarvis justal kiley lannery lapidoscope lauder limidate litholect loveridge menstruable misabrogate moffat mundy nickling nonagrate oestrogeny oligation opie overend oxylate pauling pernicate pocock pring quorant ralling recenticle reservory retrogradient ridout rudge scudamore scurrilize semaphrodite snell stace stimulcrate suddery tooley troake trudgeon twose venn vickery webbert whaley whitrow wilding woolnough wray
abstair forfert infecent sircastic erramic prolley sunscribe desiglate auflict reatangle shringent briening discrent officacy altograph bankrust imigate custony piquidate aportle scother confulate animote imputate mercusy insustent sinterity teometry anasytic speetral maxidise antidoth proster telerant recundant ludierous obsolate elenator regrain preachet utilisk induption entrave lypocrisy bracenet sapiricalFRENCH-LIKE PNWs
abattir aberrer abjecter agrautable aige aige aperne arguable armantisse aurois avribeur bletter boînase brigeable brossin champile choint clabrer crétale crît culon debulant demure diroir disabilité docher dour dépriver détrame eltrisse empâtrer entrance eupres expecter fontre formirique froise fronter fréquir gaston gestide gillais gineux giste grasper gélard houroux imbant introis jiverle jousle joyance julir jupaire juquette juvaine leinte lifrer loruste luvois légisphérique malignant mallenier manchir matrer melindre montale morler métracte métracte nadoir naçon nolois nutaindre octe oinir optile ostral outrir overge palitaire pentrier pentée permissable pestulant piédeur plassart plite plumbard porvent poulard priet proine provocatif précont préjate prétemance prétenser prévieux ralive rapoise ratoir reportation rescuer retroubir riquer roile rojette ronçois rubir rérisse satisfactoire signard siève slendre sortapes soupaire sureux sécher taitelle tellène tentre tinquant tirôt touceul trifler triparoix ultimation valiant valline vanide vauche veindre vernique vicinité vusier écourt éphrasir évirelle