Etymology

Probably formed on gete, or perhaps an aphetic form of ME bigete (thus MED, and see s.v. biyēte (n.)).  Direct derivation from an ON n. is also possible; OIcel has the nouns get and geta, though these are recorded only in the sense ‘guess, supposition’, cp. OE andgiet ‘understanding, plan, meaning’.

PGmc Ancestor

*get-

Proposed ON Etymon (OIcel representative)

get, geta 'guess', supposition' 
(ONP get (sb.))

Other Scandinavian Reflexes

Icel geta

OE Cognate

 -giet (e.g. andgiet 'understanding, plan, meaning')

Phonological and morphological markers

absence of palatalization of */ɡ/

Summary category

A1*

Attestation

Senses relating to the begetting of descendants occur in a small number of mainly N and alliterative texts; the sense ‘what is acquired; wealth, booty’ is exemplified only from Gaw and the Vernon ms text of c1390 Mirror St.Edm., and perhaps ought to be regarded as an independent derivation on the v.

Occurrences in the Gersum Corpus

Gaw 1638; WA 391, 435, 473 etc.

Bibliography

MED gēt(e (n.1) , OED get (n.1) , HTOED , HTOED , Dance get, de Vries geta (get, geta n.), Mag geta (get, geta), Orel *ʒetōn ~ *ʒetan, AEW and-giet