estrictamente
/esˌtɾiɡtaˈmente/ · B2 · adv
strictly
📏 estricta + -mente = strict + -ly; like a ruler: no wiggle room
Estrictamente is estricta (strict, from Latin strictus, 'drawn tight') plus -mente, the Spanish -ly ending. Think of 'constrict': both come from Latin stringere, to tighten, so the word means done in a tightly bound way.