From an unused root (probably meaning firm or capacious in resources); apparently wealthy -- princes.
H2831. chashman
[חַשְׁמַן] noun masculine only plural חַשְׁמַגִּים Psalm 68:32; meaning unknown, ᵑ9 ᵑ6 ᵐ5 ambassadors, Rabb nobles, conjectures from context; doubtless text error; NesJBL 1891, 152 proposes בשׁמנים they shall come with oils, ointments, Hilg Che (after Aq Jerome) חָשִׁם hasting.