Co-sign and Grubstake

Co-sign verb - Sign jointly.

Grubstake and co-sign are semantically related. in pledge topic. In some cases you can use "Grubstake" instead a verb phrase "Co-sign".

Grubstake verb - Supply with funds in return for a promised share of profits.

Co-sign and grubstake are semantically related. Sometimes you can replace phrase "Co-sign" with "Grubstake", this terms are similar.