vieil

Etymology
From, from (diminutive of ); alternative form due to historical enchaînement of the final l. Alternatively, from the accusative form while vieux is properly from nominative  as per Mildred K. Pope (From Latin to Modern French, sections 509, 808).

Usage notes

 * Used before masculine singular nouns that start with a vowel like but also before nouns that start with a mute h like :