A pronominal prefix, most likely the neuter/common plural pronoun “they”. It appears in the verb yanâkhim “[they] are at hand” in the sentence narîka ’nBâri ’nAdûn yanâkhim and in the verb yakalubim “[they] lean over” in the sentence urîd yakalubim (SD/251), both sentences having plural subjects. See the entry on pronominal-prefixes for more discussion.
* yanoun. they (neuter)