hectacre

Etymology 1
.

Noun

 * 1)  One hundred acres.

Etymology 2
From confusion of and.

Noun

 * 1)  Hectare.
 * 2) * 2007, Thomas T. Samaras, Human Body Size and the Laws of Scaling ISBN 1600214088, page 335 (list of abbreviations):
 * ha  hectacre (2.5 acres)
 * ha  hectacre (2.5 acres)