virectum

• virētum

From vireō (“to be green, verdant”) +‎ -tum (suffix forming nouns for stands of vegetation). The -c- would be inserted by analogy to forms like frutectum (“thicket, bush”), cārectum (“reed bed”) that are derived from noun stems ending in /k/.

virectum n (genitive virectī); second declension

1. greensward

Second-declension noun (neuter).

• “virectum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• "virectum", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• virectum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.