assero

• (Classical Latin) IPA^(key): /ˈas.se.roː/, [ˈäs̠ːɛroː]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈas.se.ro/, [ˈäsːero]

From ad- +‎ serō (“sow, plant”).

asserō (present infinitive asserere, perfect active assēvī, supine assitum); third conjugation

1. (transitive) to sow, plant or set near something

• assitus

From ad- +‎ serō (“join or bind together”). Given Oscan aserum (“to seize”, inf.), one can reconstruct Proto-Italic *adserō.

asserō (present infinitive asserere, perfect active asseruī, supine assertum); third conjugation

1. to join someone or something to oneself
2. (law, often with manu, in libertatem or liberali causa) to declare someone to be free by laying hands upon him; set free, liberate
3. (law, often with manu or in servitutem) to declare someone to be a slave by laying hands upon him; claim as a slave
4. to free from, protect, preserve, defend, defend against
5. to declare something to be one's own possession, arrogate, claim
6. to maintain, affirm, allege, assert, declare

• (arrogate): arrogō

• assertiō
• assertor
• assertum
• assertus

• Catalan: asserir
• English: assert
• Italian: asserire
• Portuguese: asserir

• “assero”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• assero in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.