Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Okinawan
あー
←
English
-er
(borrowed(ryu/ja))
←
English
-er
(borrowed)
←
Japanese
ああ
(cognate)
←
Proto-Japonic
*awa
(inherited)
←
Proto-Japonic
*awa
(inherited)
←
Proto-Ryukyuan
*awa
(inherited)
←
Proto-Ryukyuan
*awa
(inherited)
→
Okinawan
内地人
(suffix)
→
Okinawan
暑さかまらさー
(suffix)
→
Okinawan
アミリカー
(suffix)
→
Okinawan
眠やー
(suffix)
→
Okinawan
清らー
(suffix)
→
Okinawan
蝿瘡ー
(suffix)