Apr[...]

http://lila-erc.eu/data/corpora/CLaSSES/id/corpus/token/id/BTT-200-42 an entity of type: Terminal

Token context:

... pr(idie) Idus Febr[...] […] xiii Ḳ(alendas) Mart[...] […] xvii K(alendas) Apr[...] […] pr(idie) Idus [...]

References:

Vindolanda writing tablets edited by Bowman and Thomas (1983-2003) and Bowman, Thomas and Tomlin (2010-2019); Number 200
Apr[...] 
Apr[...] 

data from the linked data cloud