in·ter·ca·la·ry adjective \in-ˈtər-kə-ˌler-ē, ˌin-tər-ˈka-lə-rē\
a : inserted in a calendar <an intercalary day>
b of a year : containing an intercalary period (as a day or month)
Origin of INTERCALARY
First Known Use: 1614
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