in commando, desperado, ‘tornado,, and other words of sp. and port. origin, “person or group partic-p-ting in an action,” from l. -atus, pp. suffix of verbs of the first conjugation (cf. -ade).
-ae occasional plural suffix of words ending in -a, most of which, in eng., are from l. nom. fem. sing. nouns, which in l. form their plurals in -ae. but plurals in -s were established early in eng. for many of them (e.g. idea, arena) and many have crossed over since. it is now impossible […]
variant of -ea: athenaea.
a combination of -aea and -an: athenaean.
variant of -emia: anaemia. -aemia combining form denoting blood, esp a specified condition of the blood in names of diseases leukaemia word origin new latin, from greek -aimia, from haima blood -aemia suff. variant of -emia.
variant of -ena: hyaena.