Per aetatem.

http://lila-erc.eu/data/lexicalResources/LatinPortuguese/Velez/id/UsageExample/n2523.sg01.s99.u02 <http://www.w3.org/ns/lemon/lexicog#UsageExample>

Per aetatem. 
Per aetatem, 
conforme a idade; 

data from the linked data cloud