অকম্পন

Etymology
. Structurally, from Bengali 🇰🇲, or alternatively, from prefixation.

Proper noun

 * 1)  a Hindu mythological character, as described in the Ramayana, a maternal uncle and warlord of Ravana

Adjective

 * 1) steady, not shaky or trembling
 * 2) unperturbed, unmoved