The palatal hook (âÂÂá) is a hook diacritic formerly used in the International Phonetic Alphabet to mark palatalized consonants. It is a small, leftwards-facing hook joined to the bottom-right side of a letter that derives from a subscript letter j, and it is distinct from other IPA hooks that indicate retroflexion, implosion and rhotic vowels. Theoretically, it could be used on all IPA consonant letters – even on those used for palatal consonants – but it is not attested on all of the IPA letters of its era. It was withdrawn by the IPA in 1989, in favor of a superscript j following the consonant (i.e., was replaced with ).
The IPA recommended that esh and ezh not use the palatal hook, but instead get special curled symbols: and . The same has been done with . However, versions with the hook have been used and are supported by Unicode, excluding unattested .
Palatal hooks are also used for Lithuanian dialectology in the Lithuanian Phonetic Transcription System (or Lithuanian Phonetic Alphabet), including the exceptional form êÂÂ, which while graphically resembling a c plus palatal hook is actually a variant of the ᶠonce recommended by the IPA.
The palatal hook was introduced in 1921 and officially adopted in 1928. The last published IPA chart to support it was that of 1979. The following single non-palatal consonants appear on that chart. Those attested with palatal hook are bolded and set with the hook; the hooked letters are either in Unicode or are scheduled to appear in Unicode 18 in 2026. The columns for palatal letters are omitted; they are generally redundant with the hook, though 'palatalized palatals' are described in the literature. C with hook, ', is not a palatal letter but a script variant of '. W with hook, ', is attested as a convenient transcription for a palatalized bilabial approximant; ÃÂ with a hook, ', had been used for .
<nowiki>*</nowiki>, and occur with a palatal curl, which was the preferred forms for these letters in the IPA of their era.
Other non-palatal consonants listed under the 1979 chart:
The affricate () is implied but is not listed under the 1979 chart.
Unicode includes a combining character for the palatal hook, but it is not canonically equivalent to the precomposed characters, which should be used instead.