Porridge has long been one of the main dishes in the national diet. In the second half of the 19th century and the first half of the 20th century, porridges were not only cooked on a daily basis on farms but more often (more frequently barley groats or potato-cooked groats) were associated with folk traditions and cooked at the end of each major work, such as sowing, cuts, threshing, finishing of linen plucking or a larger fabric. The names of some porridges form very broad thematic vocabulary groups. Their characteristic feature is semantic branching, i.e. the use of the same products, similarity in the way of cooking, their external features determine that the same word is used to describe different porridges. In the article, the names of porridge have been examined mainly from the semantic and areal points of view. Insights are provided into names that include a reference to the source product of the food and names that reveal an activity related to the preparation or use of the food. Several of the names considered cover smaller or larger areas (e. g. klecene, studzene, pļepene). The designation of the raw product is usually included in the first component resp. in the first part of the compound name for porridge (for example, miltu biezputra ‘flour porridge’, putraimbiezputra ‘groat porridge’, azbara biezputra ‘id.’). A reference to an activity carried out during the preparation of food may reveal its relationship to the food in question, either directly (e. g. kultene ‘stirred porridge’, karseknis ‘heated porridge’) or indirectly (e. g. šķeterene ‘twisted porridge’). The considered material also provides evidence of porridge names from the word-formational, morphological and phonetical points of view. For example, derivatives with the suffixes -en-, -in-, -nīc- (lecene, pankšene, biezine, kultenīca) are widespread, prefixal derivatives (papļepene, sakratene) and compounds (puspļepene) are found, the stem change (kratene, kratenis) is observed, the interchange of the consonants s and š (studzene, študzene) has been fixed.