on (positioned at the outer surface of; attached to) · at, on (near; adjacent to; alongside; just off) · to, indicates the target or recipient of an action
köken: From Middle Dutch āne, from Old Dutch ana, from Proto-West Germanic *ana, from Proto-Germanic *ana.
aile: aan de drank, aan de gang, aan de slag, aan den lijve, aan het, aan het kortste eind trekken, aan kop, aanbreken, aandacht, aandeel
köken: From Proto-Finnic *-lla, from earlier *-l-na, composed of an element *-l(l)- (external locative infix; see -lle) and the essive/locative suffix *-na. Compare Moksha -ла (-la) in фтала (ftala, “behind”).
From earlier en, from Proto-Italic *en, from Proto-Indo-European *h₁én (“in”). Cognates include English in, Ancient Greek ἐν (en). The ablative is from the locative, and the accusative is from the directional.