masc nom sg of samupabyūḷha (pp)
Analysis. sam- (together) + upa- (up close, alongside) + byūḷha (past participle of √byudh, spread or array). The prefix pair sam-upa- intensifies the sense of gathering and arranging: things brought together in close proximity, then spread out in formation for battle.
Etymology. From sam- (Indo-European *sem-, English same, Latin similis) and upa- (Indo-European *upo-, related to Greek hypo-, Latin sub-, English up), combined with the root √byudh (to awake, spread, array), which is cognate with Sanskrit budh and English words like bud (what opens or spreads out). The military sense emerges from the concrete image of warriors arranged and positioned together.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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