fem abl sg of piṭṭhi (noun)
Analysis. piṭṭhi (back, rear) + -to (ablative suffix): literally 'from the back', hence 'from behind' or 'backwards'.
Etymology. piṭṭhi is cognate with Sanskrit pṛṣṭha 'back, rear' (from *pr̥-sth-, standing forward/prominently), related to the root √sthā 'stand'. The notion is of what stands out prominently behind one. English 'first' (what comes forward) shows the same root metaphor in reverse.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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