User blog:Eðkee/Reviving Old English words

Þere are þree words in Old English of Latin origin þat I need help wiþ: spunge, gingifer and amigdal. Normally I would need no help shaping þe hypothetical offspring of þese words but I'm not terribly good at figuring out where 'g' in Old English would be sounded out as 'g' or 'y.' Can anyone help clear þis up?