Rootle is from a frequentative of root (the verb meaning 'to dig with the snout'), from Old English wrōtan ('to root up'), with the diminutive/frequentative suffix -le. The historical chain includes Old English wrōtan. Older glosses in the chain include "to dig with the snout" and "to root up", which help explain the semantic range of the modern word. Morphologically, rootle is best read as suffixal formation and borrowing, yielding an English verb shaped by both form history and later usage. In current English it functions as a verb, with the sense "to dig or rummage with or as if with the snout; to root about". English derivatives include rootled and rootling; related forms include root and rout. The result is an English verb whose etymology preserves the older forms while supporting the word's specialized modern meaning.