coun·ter·sign 
(kountər-sīn′)
(kountər-sīn′)tr.v. coun·ter·signed, coun·ter·sign·ing, coun·ter·signs
To sign (a previously signed document) to vouch for the authenticity of the document.
n.
1. A second or confirming signature on a previously signed document. Also called countersignature.
2.
a. A sign or signal to be given to a sentry in order to obtain passage; a password.
b. A secret sign or signal given in answer to another.
- Indo-European root: medhyo-
- Indo-European root: meg-
- Indo-European root: mei-
- Indo-European root: mei-
- Indo-European root: meigh-
- Indo-European root: meik-
- Indo-European root: mei-no-
- Indo-European root: mel-
- Indo-European root: mel-
- Indo-European root: mel-
- Indo-European root: melg-
- Indo-European root: melit-
- Indo-European root: melə-
- Indo-European root: men-
- Indo-European root: men-
- Indo-European root: men-
- Indo-European root: men-
- Indo-European root: mendh-
- Indo-European root: menegh-
- Indo-European root: mer-
- Indo-European root: merg-
- Indo-European root: meuə-
- Indo-European root: mizdho-
- Indo-European root: mori-
- Indo-European root: mregh-u-