Textfile S1 abbreviations List of abbreviations for Dataset S1 o_distance normalized orthographic Levenshtein distance p_distance normalized phonetic Levenshtein distance raw_p_distance normalized orthographic Levenshtein distance applied to phonetic transcriptions l1_frequency L1 word frequency in occurences per million l2_frequency L2 word frequency in occurences per million l1_syntax L1 syntactic category l2_syntax L2 syntactic category l1_length L1 word length l2_length L2 word length List of abbreviations for Table S1 AFFRC Affricate APPRX Approximant BRWD Borrowed CO-ARTIC co-articulation CNS Consonant DPHTNG Diphthong FRCAT Fricative IPA International Phonetic Alphabet lat. lateral NPULM non-pulmonic PLSV Plosive pos. position syll. Syllabified VWL Vowel