Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
æt-
←
Old English
æt
(mention)
→
English
at-
(inherited)
→
Old English
ætgædere
(affix)
→
Old English
ætsamne
(affix)
→
Old English
ætiecan
(affix)
→
Old English
ætfon
(affix)
→
Old English
ætsteall
(affix)
→
Middle English
at-
(inherited)
→
Gothic
𐌰𐍄-
(cognate)