IPA: /kənˈsɛntrɪtɪdli/
KK: /kɒnˈsɛntrɪtɪdli/
In a focused or intense manner, paying close attention to something.
She studied concentratedly for her final exams to ensure she understood all the material.
Concentratedly → It is formed from "concentrate" (from Latin "concentrare", meaning to bring together) and "-ly" (a suffix meaning in a manner). The word "concentratedly" means in a manner that brings things together or focuses attention.
Think of focusing your attention 'together' ('concentrate') in a specific way — that's what 'concentratedly' means.