sheldrake

From Middle English sheld- (“parti-colored”) (akin to Middle Dutch shillede) + drake (“male duck”).

sheldrake (plural sheldrakes)

1. An Old World duck of the genus Tadorna (shelducks).

   Synonym: vulpanser

   1. A male shelduck.
2. A merganser.
3. The call sign for an artillery officer.

• “sheldrake” in Webster’s Seventh New Collegiate Dictionary: Based on Webster’s Third New International Dictionary, 7th edition, Springfield, Mass.: G[eorge] & C[harles] Merriam, 1963 (1967 printing), →OCLC.