Var. pasānu, pesēmu, pesēnu, paṣānu.
Derived words: napsamu ‘nose bag’ (CAD N₁ 315, AHw. 740); pašūmu ‘veiľ (CAD P 269); pisintu ‘stealth’ (CAD P 424, AHw. 856); pusummu (puṣunnu) ‘veiľ (CAD P 537, AHw. 883); pusumtu ‘veiľ (CAD P 538); tapsīmtu ‘veiling’ (CAD T 193, AHw. 1322).
The root variant pṣn must be diachronically primary with respect to psm. Promising cognates are represented by the metathetic variant
*ṣpn.