dem-s-pot-
“master of the house”despot, despotic, despotism
Compound of *dem- and *pot- giving Greek despotēs, English despot, despotic.
Discussion
The PIE compound *dem-s-pot- (master of the house) is one of the most celebrated reconstructions in comparative linguistics, a transparent compound of *dem- (house, household) and *poti- (master, lord, powerful one) that survives intact in Greek despótēs (δεσπότης) and Sanskrit dampati-. The correspondence is so exact — two elements, same order, same meaning, same morphology — that it serves as a standard textbook example of the comparative method.
Greek despótēs underwent a remarkable semantic journey. In Homeric Greek it meant simply "master of the house, lord," with no negative connotation. By the Classical period it had acquired the sense of absolute ruler, particularly of a non-Greek king — Herodotus and Thucydides use it for Persian monarchs, implicitly contrasting despotic rule with Greek democratic governance. This political sense, borrowed into Latin as despota and thence into French and English as despot, is now the word's primary meaning in Western languages. The English derivatives despotic, despotism, and the Russian tsar-era term samoderzháv (autocrat, literally self-despot) all preserve the political connotation.
Sanskrit dampati- (master of the house, lord) preserves the domestic meaning more faithfully. In Vedic literature, dampati- refers to the head of a household and, by extension, to a husband. The compound appears in the Rigveda in contexts describing ritual authority within the home. The feminine counterpart, Sanskrit dampati-nī (mistress of the house), shows the expected feminine derivation.
The first element *dem- (house) is independently one of the most productive PIE roots. It gave Latin domus (house), from which English derives domestic, domicile, dome, and domain. Greek dómos (house, building) survives in the -dome of modern compounds. Russian dom (house), Lithuanian namas (house, with nasal prefix), and Old Irish dam (house, retinue) extend the attestation across the family. The PIE household was evidently the fundamental social unit, and the vocabulary built around *dem- reflects its centrality.
The second element *poti- (master, lord) is equally productive. It appears independently in Latin potis (powerful, able), from which English derives potent, possible, power, and potentate. Sanskrit pati- (lord, master, husband) is preserved in modern Hindi pati (husband). Lithuanian pats (self, husband) shows the Baltic reflex. The PIE word for husband appears to have literally meant "the powerful one" or "the master," a semantic identification of marital authority with household power.
The compound *dem-s-pot- is therefore doubly transparent: house + master. The linking *-s- between the elements is the genitive singular ending of *dem-, making the compound literally "master of the house" with the genitive relationship grammatically encoded. This is not mere juxtaposition but a syntactically structured compound, evidence that PIE had productive rules for forming possessive compounds of the type that Sanskrit grammar later classified as tatpuruṣa (dependent determinative) compounds.
Benveniste (1969) and Mallory and Adams (1997) both discuss *dem-s-pot- in the context of PIE social organisation, noting that the compound implies a society in which the household head held recognised authority — a patriarchal structure consistent with other reconstructed kinship terminology. The word survived in two widely separated branches (Greek and Indo-Iranian) with the same meaning, suggesting it was not a local innovation but a firmly established PIE institution.