properly, meaning superimposition (of time, place, order, etc.), as a relation of distribution (with the genitive case), i.e. over, upon, etc.; of rest (with the dative case) at, on, etc.; of direction (with the accusative case) towards, upon, etc.

to be of interest to, i.e. to concern (only third person singular present indicative used impersonally, it matters)

carefulness, i.e. kind attention (hospitality)

carefully