masc nom sg of asatiamanasikāra (noun)
Analysis. a-sati + a-manasikāra: 'non-recollection' + 'non-attention'; a compound of two privative formations. sati (recollection) and manasikāra (mental application) are both negated by the prefix a-, and the two are joined in copulative synthesis to denote the cognitive absence that constitutes forgetting and inattention.
Etymology. From a- (negation) + sati (recollection, from √smṛ 'remember'; cognate with English smirch, Latin memor, Greek mimnēskō) and a- + manasikāra (attention, from manas 'mind' + kāra 'doing', where manas cognates with English mind, Latin mens). The compound expresses the doctrinal notion of heedlessness—the opposite of mindfulness and right attention, both essential to the path.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
Lite mode — plain HTML for e-readers and old browsers. Full version