From ܒܹܝܬ (bēt, “house of”) + ܣܡܵܟ݂ܵܐ (smāḵā, “company, group, guests”).
ܒܹܝܬ ܣܡܵܟ݂ܵܐ • (bēt smāḵā) m sg (plural ܒܵܬܲܝ̈ ܣܡܵܟ݂ܵܐ (bāttay smāḵā))