Does Proto-Germanic have -wan suffix like Russian -вать

Are these Old English and Russian verbs have the same suffix?


cnāwan (у)знавать > знать
sēowan (за)шивать > шить
wāwan (раз)вевать > веять
? hēawan ковать > киянка (кий)

I mean,

Is Old English -wan a suffix like Russian -вать

or

Could Old English -w- be a "euphonic insertion" ?



Russian have
noun подаяние "alms",

but

some Old Slavic texts have
подаание "alms" instead ("a" is uniotated "я")

I mean "a" and "a" never got along together.