masc instr sg of siras (noun); masc abl sg of siras (noun)
Etymology. From PIE *ker- 'head', cognate with Sanskrit śiras, Greek κεφαλή (kephalē), Latin cerebrum 'brain', English horn (via the sense of projecting head-like parts). The root appears across Indo-European languages with consistent spatial reference to the uppermost, projecting part of the body.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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