Cognate with 躑躅 (*dek dok), 躊躇 (*du da), 彳亍 (*tʰek tʰok), all meaning "walking slowly or with difficulty > hesitant".
Notes for Old Chinese notations in the Baxter–Sagart system:
* Parentheses "()" indicate uncertain presence;
* Square brackets "" indicate uncertain identity, e.g. *[t] as coda may in fact be *-t or *-p;
* Angle brackets "<>" indicate infix;
* Hyphen "-" indicates morpheme boundary;