proto - germanic west germanic old english       german dutch
0                þ             -           -            d   d /
1                þ             -           -            d   d /
2                đ             d           d            t   d /
3                đ             d           d            t   d /
4                t             t           t  s / or / ts   t /

Table as JSON:
{"proto - germanic":{"0":"þ","1":"þ","2":"đ","3":"đ","4":"t"},"west germanic":{"0":"-","1":"-","2":"d","3":"d","4":"t"},"old english":{"0":"-","1":"-","2":"d","3":"d","4":"t"},"german":{"0":"d","1":"d","2":"t","3":"t","4":"s \/ or \/ ts"},"dutch":{"0":"d \/","1":"d \/","2":"d \/","3":"d \/","4":"t \/"}}