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Sound laws · Law 16 · Clusters

L + yod

LI, LE + vowel

Spanish

j [x]

French

il, ill [j]

Italian

gli [ʎʎ]

Portuguese

lh [ʎ]

Romanian

i [j] (the l lost)

Catalan

ll [ʎ]

What happened

In spoken Latin, an unstressed I or E before another vowel became a glide [j] (yod), and L + j merged into a palatal l, [ʎ]. Italian kept it, doubled between vowels, and Portuguese (lh) and Catalan (ll) kept it single. French later lost the lateral, leaving the glide [j], still spelled -il, -ill-, and Romanian did the same (foaie, pai). Spanish hardened ʎ to ʒ, devoiced it to ʃ and pushed it back to [x], the same road as medial CL.

Examples

LatinItalianSpanishFrenchPortugueseRomanianCatalanEnglish relative
FOLIAM‘leaf (ro foaie 'sheet')’fogliahojafeuillefolhafoaiefullafoliage
FĪLIAM‘daughter’figliahijafillefilha—fillafilial
ALIUM‘garlic’aglioajoailalhoaiall
PALEAM‘straw’pagliapajapaillepalhapaipalla
MELIŌREM‘better’miglioremejormeilleurmelhor—millorameliorate
CONSILIUM‘counsel, advice’consiglioconsejoconseilconselho—consellcounsel

Decoder

Italian gli = Portuguese lh = Catalan ll = Spanish j = French ill/il: foglia, folha, fulla, hoja, feuille; aglio, alho, all, ajo, ail. Romanian has just i: foaie, ai.

Exceptions

French fils comes from the nominative FĪLIUS, not FĪLIUM, so it shows no palatal (and its l is silent). Romanian ai 'garlic' is now mostly usturoi in everyday speech. Learned words keep li: filial, conciliar, auxiliar.

Watch it happen: FĪLIUM

In your word bank