We don't have synonyms for et al yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are etal, ethal and el al.
(adv) :
used as an abbreviation of `et alibi' when referring to other occurrences in a text
(adv) :
used as an abbreviation of `et alii' (masculine plural) or `et aliae' (feminine plural) or `et alia' (neutral plural) when referring to a number of people
(adv) :
used as an abbreviation of `et alibi' when referring to other occurrences in a text
(adv) :
used as an abbreviation of `et alii' (masculine plural) or `et aliae' (feminine plural) or `et alia' (neutral plural) when referring to a number of people