armadillo
‘an omnivorous, burrowing animal with a bony shell’
Lexical development traced from the Tamil root:
E. armadillio < Span. armadillo < armado ‘armored’ < Lat. armatus <armare ‘to arm, furnish with weapons,’ related to arma ‘weapons, tools’ < aam < ar(ə)mo < ar- < Tamil ār