introspect
a prefix meaning ‘inward, internally, within’
Lexical development traced from the Tamil root:
Lat. introspectus < introspicere ‘look at, look into; examine, observe attentively’ < intro ‘in, on the inside, within, to the inside’ + specere ‘to look at’ < en-t(e)ro- < in < en < Tamil il-iṉ