at-

Part of speech: prefix
occurs in v-s in the sense of: 1) “near, beside, at; “on, to”; e g atstandan “to stand near”; 2) “to, towards”; e g atgaggan “to come up (to); to approach”; atrinnan “to run up (to); to come running up (to)”
Etymology
[← at prep; OE æt-; O Fris et-; O Sax at-; O Icel at-]